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Preview: About.com Animals / Wildlife: Most Popular Articles

About.com Animals & Wildlife: Most Popular Articles



These articles are the most popular over the last month.



Published: Wed, 28 Sep 2016 11:11:05 +0000

 



The 6 Basic Animal Groups

2016-09-28T11:11:05Z

Unlock the basics behind how scientists classify animals in this beginner's guide to the six basic animal groups.



Want to Donate Your Money to Wildlife? Here's...

2016-09-28T11:11:05Z

Do you want to donate your money to a reputable, and effective, wildlife conservation organization? Here's our list of the 10 best, ranging from the World Wildlife Fund to the National Audubon Society.



Do You Know These 12 Animals of North America?

2016-09-28T11:11:05Z

A slideshow of the 12 most important animals of North America, including mammals, birds, lizards, and butterflies.



The 6 Basic Invertebrate Groups

2016-09-28T11:11:05Z

An introduction to six basic groups of invertebrates including arthropods, cnidarians, echinoderms, mollusks, segmented worms, and sponges.



10 Simple Things You Can Do to Protect Animals

2016-09-28T11:11:05Z

It's easy to feel overwhelmed in the face of species loss and habitat destruction. Here is a list of things you can do to help protect wildlife.



Give A Hoot: Top 10 Facts About Owls

2016-09-28T11:11:05Z

Facts about owls, a group of birds known for their distinct calls, nocturnal habits, and silent flight.



Organ Systems in Animals

2016-09-28T11:11:05Z

Animals' bodies are made up of various organ systems, groups of organs that work together to perform a function.



Do You Know These Basic Facts About Mammals?

2016-09-28T11:11:05Z

From an evolutionary perspective, mammals are the most advanced animals on our planet. Here are 10 essential facts about mammals that everyone should know.



Population Biology Basics

2016-09-28T11:11:05Z

Explore the nitty gritty of population biology, a fascinating branch of zoology that investigates the ways in which populations change over time.



What Are Prokaryotes and Eukaryotes?

2016-09-28T11:11:05Z

All living organisms can be sorted into one of two groups depending on the fundamental structure of their cells - prokaryotes or eukaryotes.



Animals of the Great Barrier Reef

2016-09-28T11:11:05Z

A list of some of the animals that inhabit the Great Barrier Reef including sea birds, mollusks, marine mammals, marine reptiles, and more.



10 Fun Facts About Reptiles

2016-09-28T11:11:05Z

They're nowhere near as common as they were 100 million years ago, but reptiles are still some of the most distinctive animals on earth.



10 Facts About Reptiles

2016-09-28T11:11:05Z

Reptiles are cold-blooded vertebrates that diverged from ancestral amphibians about 340 million years ago.



The Eight Traits That Make an Animal an Animal

2016-09-28T11:11:05Z

What exactly is it that defines an animal? Here's a slideshow of the eight main animal characteristics, ranging from multicellularity to sexual reproduction.



Do You Know These 10 Essential Bird Facts?

2016-09-28T11:11:05Z

One of the six basic groups of animals, birds are characterized by their feathers and (in most species) the ability to fly. Here are 10 essential bird facts everyone should know.



Animals: Multicellular Creatures That Move

2016-09-28T11:11:05Z

Explore the vast diversity of animal life, from arrow worms to waterbears, and discover how these remarkable organisms differ from all other living things.



10 Facts About Invertebrates

2016-09-28T11:11:05Z

Learn interesting facts about invertebrates, a group of animals that accounts for 97 percent of all known species.



Endangered Species: A Closer Look

2016-09-28T11:11:05Z

Scientists and conservationists who study the animal species that face a high risk of extinction refer to such species as endangered species.



Do You Know These 10 Essential Amphibian Facts?

2016-09-28T11:11:05Z

A crucial link between water-dwelling fish and land-dwelling reptiles, amphibians are among the most fascinating animals on earth. Here are 10 fascinating amphibian facts.



Meet the 21 Orders of Mammals

2016-09-28T11:11:05Z

Are you familiar with the 21 orders, or groups, of mammals? This slideshow will take you on a guided tour, ranging from tiny aardvarks (order Tubulidentata) to much bigger whales and dolphins (order Cetacea).



Reptiles: Key Characteristics

2016-09-28T11:11:05Z

Explore the basic characteristics that are shared by all reptiles—from snakes and lizards to crocodiles and turtles.



The 4 Basic Reptile Groups

2016-09-28T11:11:05Z

An introduction to the four basic groups of reptiles including crocodilians, lizards, snakes and turtles.



Reptiles: Cold-Blooded Yet Charismatic

2016-09-28T11:11:05Z

Reptiles are a group of vertebrates that colonized terrestrial habitats more extensively than their amphibian ancestors.



What Do Turtles Eat?

2016-09-28T11:11:05Z

From leaves and grasses to fish and crustaceans, the diet of today's turtles is really quite varied.



Flatworms: Planarians, Flukes, and Tapeworms

2016-09-28T11:11:05Z

Flatworms are a group of invertebrates that includes planarians, tapeworms, and flukes. Flatworms include both free-living and parasitic species.



These Eight Traits Separate Mammals From Other...

2016-09-28T11:11:05Z

What makes mammals different from other vertebrate animals? Here's a slideshow of the eight main mammal characteristics, ranging from hair to four-chambered hearts.



Understanding Communities and Ecosystems

2016-09-28T11:11:05Z

Decode some of the jargon that is used in the science of ecology to describe natural communities, populations, and ecosystems.



How Much Do You Know About Giraffes?

2016-09-28T11:11:05Z

With their long necks, richly patterned coats and stubby ossicones, Giraffes are among the most recognizable animals on earth. Here are 10 essential Giraffe facts.



10 Facts About Mollusks

2016-09-28T11:11:05Z

Boost your understanding of mollusks, a group of invertebrates known for their remarkable diversity—in both sheer number of species as well as variety of form.



How Do Species Interact?

2016-09-28T11:11:05Z

It gets complicated when species share the same habitat. This guide will help you to untangle the many interactions that arise when species mingle.



Great Barrier Reef

2016-09-28T11:11:05Z

The Great Barrier Reef is the largest coral reef in the world. It is located off the shores of eastern Australia from Bamaga to Bundaberg, Queensland.



10 Fun Octopus Facts

2016-09-28T11:11:05Z

With their eight tentacles and bigger-than-average brains, octopuses are among the world's most fascinating creatures. Here's a slideshow of 10 essential octopus facts.



Jellyfish: Flimsy, Floating Carnivores

2016-09-28T11:11:05Z

Jellyfish are a group of carnivorous cnidarians with a bell-shaped body and tentacles. Jellyfish are delicate, soft-bodied animals.



Animal Profiles: By Scientific Name

2016-09-28T11:11:05Z

An A to Z list of animal profiles available at this site, sorted alphabetically by scientific name.



Barn Owls: The Heart-Shaped Face Owls

2016-09-28T11:11:05Z

Barn owls are a group of owls that have a heart-shaped face, long legs and powerful talons. Barn owls are medium-sized birds with a large wingspan.



How Much Do You Know About Arthropods?

2016-09-28T11:11:05Z

Arthropods--which include insects, spiders, and crustaceans--are by far the most common animals on earth. Here's a slideshow of 10 essential arthropod facts.



Cute Birds: The Top 10 Most Adorable Birds

2016-09-28T11:11:05Z

Get a glimpse of some of the most adorable birds alive today and discover why each species is more than just cute, it is also entirely unique.



The Life Cycle of a Jellyfish

2016-09-28T11:11:05Z

The most recognized image of a jellyfish is that of the adult jellyfish, with its bell-shaped body and long tentacles.



Bats Fine-Tune Flight Using Touch Receptors

2016-09-28T11:11:05Z

There is more to bat aerobatics than merely echolocation and bats have a more complex sensory repertoire than previously thought.



Top 10 Facts About Animals

2016-09-28T11:11:05Z

Expand your understanding of animals and learn some of the basics behind their biology as well as a handful of lesser-known animal facts.



Vertebrates: Famous for Their Backbones

2016-09-28T11:11:05Z

Discover how the innovation of a supportive backbone enabled the vertebrates to stand tall and go beyond their chordate ancestors.



Facts About Great Horned Owls

2016-09-28T11:11:05Z

Great horned owls are a large species of true owls that inhabits many parts of North and South America.



Mollusks: Mussels, Clams, Scallops, and More

2016-09-28T11:11:05Z

Mollusks are a group of invertebrates that includes squids, octopuses, cuttlefishes, nudibranchs, snails, slugs, limpets, mussels, and many more.



Animal Senses: Beyond the Five Human Senses

2016-09-28T11:11:05Z

Man-made radars and infrared detectors help humans to stretch their awareness beyond their five senses. However, animals have their own set of senses.



Learn About Appalachian Mountain Habitat

2016-09-28T11:11:05Z

Profile of the Appalachian Mountain Range, an ancient band of mountains that stretches in a southwestern arc from Newfoundland to Alabama.



10 Facts About Dolphins

2016-09-28T11:11:05Z

Learn interesting facts about dolphins and find out about the characteristics make them different from other animal groups, their life cycle and their evolutionary history.



10 Facts About Jellyfish

2016-09-28T11:11:05Z

Jellyfish get a lot of negative press for the threats they can pose to swimmers and holiday makers visiting beaches around the world.



The Biggest Threats to Animals and Wildlife

2016-09-28T11:11:05Z

Living organisms face a constant barrage of external stresses or threats that challenge their ability to survive and reproduce.



What Is Descent with Modification?

2016-09-28T11:11:05Z

Descent with modification refers to the passing on of traits from parent organisms to their offspring.



How Many Animal Species Are There on Earth?

2016-09-28T11:11:05Z

Find out how scientists estimate and count the many millions of animal species that live on our planet today.



Arthropods: The Exoskeleton-Clad Invertebrates

2016-09-28T11:11:05Z

Arthropods are a group of invertebrates that includes insects, spiders, crustaceans, scorpions, centipedes, and many others.



Insectivores: Moles, Moonrats, and More

2016-09-28T11:11:05Z

Insectivores are a group of mammals that include hedgehogs, moonrats, shrews, and moles. Insectivores are generally small mammals with nocturnal habits.



10 Facts About Marsupials

2016-09-28T11:11:05Z

Learn interesting facts about marsupials and find out about the characteristics make them different from other animal groups, their life cycle and their evolutionary history.



Myriapods: The Many-Legged Arthropods

2016-09-28T11:11:05Z

Myriapods are a group of arthropods that includes millipedes, centipedes, pauropods, and symphylans. Myriapods are noted for their having many legs.



10 Facts About Bears

2016-09-28T11:11:05Z

Facts about bears, a group of carnivores known for their burly build, impressive agility and, in some species, their winter sleep habits.



10 Facts About Fishes

2016-09-28T11:11:05Z

Learn interesting facts about fishes and find out about their diversity, evolutionary history and the characteristics make them different from other animal groups.



The 20 Biggest Mammals, from Whales to Rodents

2016-09-28T11:11:05Z

A comprehensive list of the world's biggest mammals by type, ranging from whales to hedgehogs.



Toothed Whales: Belugas, Narwhals, and More

2016-09-28T11:11:05Z

Toothed whales, as their name implies, have teeth, a characteristic that distinguishes them from their baleen whales.



Squamates: The Flexible-Jawed Reptiles

2016-09-28T11:11:05Z

Squamates are a group of reptiles that sheds their skin periodically in patches and have uniquely jointed skulls and jaws.



What Do Reptiles Eat?

2016-09-28T11:11:05Z

What reptiles eat differs from species to species but here you'll find out about some of the general dietary trends for various reptiles.



Owls

2016-09-28T11:11:05Z

Owls are a group of birds that have strong talons, a downward-curved bill, acute hearing, and keen eyesight.



The 3 Basic Fish Groups

2016-09-28T11:11:05Z

An introduction to the basic fish groups including bony fishes and cartilaginous fishes.



Invertebrates: The Spineless Majority

2016-09-28T11:11:05Z

Scientists have identified nearly one million living species of invertebrates, but this is only a small fraction of the invertebrates alive today.



Perching Birds: Fact Sheet

2016-09-28T11:11:05Z

Perching birds are a group of birds known for their specialized feet and the complex vocalizations and songs.



10 Facts About Carnivores

2016-09-28T11:11:05Z

Canids are long-legged carnivores that include wolves, coyotes, jackals, foxes, wild dogs and domestic dogs.



How Animals Are Shaped by Their Environment

2016-09-28T11:11:05Z

Discover the remarkable ways that animals are shaped by the natural environment in which they live.



Aquatic Biome: Reefs, Mangroves, and More

2016-09-28T11:11:05Z

The aquatic biome consists of habitats around the world that are dominated by water, from tropical reefs, to brackish mangroves, to Arctic lakes.



Lion: The Most Social of the Big Cats

2016-09-28T11:11:05Z

The lion is a species of large cat that has a buff colored coat, white underparts, and a long tail that ends in a black tuft of fur.



Lion Pride: The Social Circle Lions Keep

2016-09-28T11:11:05Z

Gain an intimate view of the social lives of lions, the only species of cat that hangs out in groups called prides.



Zoology: The Science and Study of Animals

2016-09-28T11:11:05Z

Zoology is the study of animals; yet this definition implies a simplicity that does not exist; instead, zoology is a complex discipline, drawing upon a diverse body of scientific observation and theory.



What Is Sexual Dimorphism?

2016-09-28T11:11:05Z

Sexual dimorphism is the difference in form between male and female members of the same species.



10 Facts About Snowy Owls

2016-09-28T11:11:05Z

Snowy owls are large owls with white plumage and their extreme northerly range which includes tundra habitat throughout Alaska, Canada and Eurasia.



Rocky Mountains: The Backbone of the West

2016-09-28T11:11:05Z

The Rocky Mountains stretch through western North America from Alaska to New Mexico, forming the middle section of the Western Cordillera.



The Mystery of North America's Black Wolves

2016-09-28T11:11:05Z

Despite their name, gray wolves are colorful canines. Their coat color ranges from white to gray to black and is regulated by complex genetic factors.



Animals of the Arctic

2016-09-28T11:11:05Z

The Arctic is a region that encircles the north pole and extends southward over the Arctic Ocean, Alaska, Canada, Greenland, Iceland, Scandinavia, and Russia.



Cetaceans: Mammals of the Sea

2016-09-28T11:11:05Z

Cetaceans are highly specialized mammals with numerous adaptations that make them well-suited for living in water.



Animal Profiles: By Common Name

2016-09-28T11:11:05Z

An A to Z list of animal profiles available in The Animal Encyclopedia, sorted alphabetically by common name.



Mammals: The Furry Tetrapods

2016-09-28T11:11:05Z

Mammals are a group of tetrapods that includes bats, carnivores, cetaceans, elephants, hoofed mammals, primates, monotremes, marsupials, and rodents.



The 3 Basic Amphibian Groups: A Beginner's...

2016-09-28T11:11:05Z

Decode the secrets of amphibian classification in this beginner's guide to the three basic amphibian groups.



Rodents: Fact Sheet

2016-09-28T11:11:05Z

Profile of rodents, a group of mammals that includes squirrels, dormice, mice, rats, gerbils, beavers, gophers, kangaroo rats, pocket mice, and many others.



Echinoderms: Famous For Their Five-Point Symmetry

2016-09-28T11:11:05Z

Echinoderms are a group of marine invertebrates that includes star fish, sea lilies, feather stars, brittle stars, sea cucumbers and sea urchins.



Cnidarians: The Radially Symmetrical Invertebra...

2016-09-28T11:11:05Z

Cnidarians are a group of aquatic invertebrates that includes jellyfish, corals, sea anemones and hydras.



The Chemistry of Animal Life

2016-09-28T11:11:05Z

Animals, like all lifeforms, are composed of and dependent upon the chemicals of life. To understand the chemistry of life, we need to first understand the basics of general chemistry.



The 30 Basic Bird Groups

2016-09-28T11:11:05Z

An introduction to the 30 basic groups of birds including birds of prey, buttonquails, gamebirds, herons, hummingbirds, owls, rheas, and many others.



Arthropod Pictures

2016-09-28T11:11:05Z

Pictures of arthropods including spiders, scorpions, horseshoe crabs, katydids, beetles, millipedes, and more.



Amphibians: The First Vertebrates to Venture...

2016-09-28T11:11:05Z

Amphibians are the most ancient of all tetrapod lineages and the first to have climbed onto dry land some 370 million years ago.



Fishes: The Scaly Rulers of the Seas

2016-09-28T11:11:05Z

Discover the secrets of the fishes, a diverse and ancient group of animals whose earliest ancestors appeared some 510 million years ago.



Habitat Loss, Fragmentation, and Destruction

2016-09-28T11:11:05Z

Habitat destruction is fueled by a fast-growing human population. As human populations increase, we use more land for agriculture, cities, and towns.



Amazon River Basin Animals

2016-09-28T11:11:05Z

A list of animals of the Amazon River basin in South America including harpy eagles, three-toed sloths, toucans, and more.



Mammalian Temperature Regulation

2016-09-28T11:11:05Z

To maintain correct body temperature, mammals must conserve body heat in cold conditions and dissipate extra body heat in warmer conditions.



Why Species Have Niches

2016-09-28T11:11:05Z

Definition of a niche, a term used to describe the role an organism or population plays within its community or ecosystem.



Camouflage

2016-09-28T11:11:05Z

Definition of Camouflage and how it helps animals.



American Black Bear: Smaller Cousin to Brown...

2016-09-28T11:11:05Z

The American black bear is a large carnivore that inhabits the forests, swamps, tundra throughout the more northerly reaches of North America.



Keystone Species: Animals With Critical Roles

2016-09-28T11:11:05Z

Discover how some species can be the glue that holds an entire ecosystem together. And find out why such keystone species are sometimes the least likely critter.



The 25 Biggest Living Things on Earth

2016-09-28T11:11:05Z

Here's our list of the 25 biggest living things on earth, ranging from viruses and mammals to plants and fungi.



Turtles: The Carapace-Clad Reptiles

2016-09-28T11:11:05Z

Turtles are a group of reptiles best known for the hard shell which is a modification of their ribcage and vertebral column.



A Guide to the Cnidarians

2016-09-28T11:11:05Z

Cnidarians are diverse and come in many shapes and sizes but there are some basic anatomical features that most members of the group share in common.



From Forest Floor to Canopy: The Layers of a...

2016-09-28T11:11:05Z

Mature forests often have several distinct layers including the forest floor, herb layer, shrub layer, understory, canopy, and emergents.



Animal Cells, Tissues, Organs and Organ Systems

2016-09-28T11:11:05Z

To understand animals and their biology, it helps to understand the cells, tissues, organs and organ systems that comprise them.



Temperate Forests: The Mild-Climate Forests

2016-09-28T11:11:05Z

Temperate forests evolved 65 million years ago when global temperatures dropped and, in areas further from the equator, cooler climates emerged.