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Bats: Misunderstood Mammals of Flight (Part 1) Planet Bonehead podcast on bats.

Mammals Check us out at Mammals (formally Mammalia) are a class of vertebrate, air-breathing animals whose females are characterized by the possession of mammary glands while both males and females are characterized by sweat glands, hair and/or fur, three middle ear bones used in hearing, and a neocortex region in the brain. Mammals are divided into three main infraclass taxa depending how they are born. These taxa are: monotremes, marsupials and placentals. Except for the five species of monotremes (which lay eggs), all mammal species give birth to live young. Most mammals also possess specialized teeth, and the largest group of mammals, the placentals, use a placenta during gestation. The mammalian brain regulates endothermic and circulatory systems, including a four-chambered heart. There are approximately 5400 species of mammals, distributed in about 1200 genera, 153 families, and 29 orders(though this varies by classification scheme). Mammals range in size from the 3040 millimeter (1- to 1.5-inch) Bumblebee Bat to the 33-meter (108-foot) Blue Whale. Mammals are divided into two subclasses: the Prototheria, which includes the oviparous monotremes, and the Theria, which includes the placentals and live-bearing marsupials. Most mammals, including the six largest orders, belong to the placental group. The three largest orders, in descending order, are Rodentia (mice, rats, porcupines, beavers, capybaras, and other gnawing mammals), Chiroptera (bats), and ...

Bat in Windtunnel The articulated bone structure and soft membrane of bat wings give them maneuverability that is superior to birds. Credit: K. Breuer, Brown University

Mammals Vs. Dinos- Mammalian Neocortex On the Science Channel's "Mammals vs. Dinos," development of the neocortex enabled early mammals to ***yze, differentiate, and react to sound. Ability to react to sound, enabled mammals to survive and thrive at night.

Mammal Classification Explains how mammals are classified. Increase your appreciation for mammals. Find more animal activities and games at

Human Mammal, Human Hunter - Attenborough - Life of Mammals - BBC Human bengs are a particular type of mammal. In this compelling clip, we see a tribesman runner persue his prey through the most harsh conditions in a gruelling eight hour chase. Thought provoking content from the BBC's Life of Mammals documentary series. Visit for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here

Mammals Vs. Dinos- Mammalian Ear Evolution On the Science Channel's "Mammals vs. Dinos," even though mammals remained small during the age of the dinosaur, they began to thrive with the development of the ear ossicles. Development of the senses helped mammals survive particularly at night.

Mammals Vs. Dinos- Allosaurus vs. Stegosaurus An Allosaurus and Stegosaurus battle it out on the Science Channel's "Mammals vs. Dinos." Allosaurs were successful, meat eating predators, while Stegosaurus were herbivores, which often traveled in herds for protection.

Ultimate Animal Moms - Mammals Watch more at Find out more about baby mammals and what makes them special.

Breeding Southern Right Whales - Attenborough - Life of Mammals - BBC The Southern Right Whale is an enormous creature - in more ways than one. In this clip, a group of fertile males surround a female who is not initially receptive in order to mate. With a twelve foot long penis and testes that weigh a ton, picking the right moment is critically important. From Life of Mammals. Visit for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here

Mammals Vs. Dinos- Dilong: Feathered Hunters On the Science Channel's "Mammals vs. Dinos," this feathered dinosaur roamed the forests of ancient Liaoning. Agile and swift, Dilong hunted in packs with deadly ferocity. Mammals were no match for Dilong.

Mammals Vs. Dinos- Dinosaur Hunting On the Science Channel's "Mammals vs. Dinos," although most small prehistoric mammals were nocturnal, the repenomamus hunted by day and preyed on small dinosaurs which was a sign of the evolution of mammals.

The Mammals - John Henry The Mammals performing at the 2006 Clearwater Festival.

MAMMALS The biggest creature that has ever lived, the blue whale, is a mammal. So too are tiny pygmy shrews, giant pandas and human beings. Mammals are an amazingly varied group but they are all warm-blooded vertebrates. They have a bony skeleton and hair on their bodies at some stage of their lives. All mammals feed their young on milk from their own bodies and adult females have mammary glands for producing this milk. Mammals are generally agreed to be the most intelligent of all animals and they have the most highly developed nervous systems. Most mammals have four limbs, but in some these have become adapted into flippers for swimming power (seals and whales) or even wings (bats). There are about 4600 species of mammal. Most live on land, but whales, dolphins, seals and sea lions are among those that have become adapted to life in water. Bats wings are made of skin stretched over a flexible bone structure like the human hand, so they can control their direction very easily. This makes them expert fliers and they spend much of the time in the air. Mammals are usually divided into three groups—monotremes (egg-laying mammals), marsupials (pouched mammals) and placental mammals. The placental group is by far the largest.

Mammals Vs. Dinos- First Birds On the Science Channel's "Mammals vs. Dinos," dinosaurs made a huge evolutionary leap as they developed feathers and the ability to fly.

Mammals Vs. Dinos- Early Mammalian Life Span On the Science Channel's "Mammals vs. Dinos," comparisons are made between the lifespan of dinosaurs and mammals during the Cretaceous. Mammals had much shorter life spans, but reproduced rapidly giving them the evolutionary edge over dinosaurs.

What is a Mammal? This short enhanced podcast provides an overview of mammal characteristics. Excerpt from an interview with Dr. Ross MacPhee, curator and researcher at the American Museum of Natural History. This video is part of the Beyond Penguins and Polar Bears magazine issue: Mammals.

Mammals Vs. Dinos- Mammalian Sensory Development On the Science Channel's "Mammals vs. Dinos," night time was the right time for mammals during the age of dinosaurs. Their nocturnal abilities to hunt and feed protected mammals from their predators and lead to further development of their ears.

Kangaroo Boxing - Attenborough - Life of Mammals - BBC This clip from the BBC's Life of Mammals looks at the quest to be the dominant male in a group of grey kangaroos. To do this, they fight and winning the fight means that male will father most of the next babies. The little joey kangaroos have an entertaining attempt as well. Visit for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here

Newborn Baby Grey Kangaroo - Attenborough - Life of Mammals - BBC Amazing footage of a grey kangaroo giving birth and the development of a joey in his mother's pouch. This clip from the BBC's Life of Mammals looks at the development of different ways of giving birth that have developed in Australia. Visit for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here

Meet the Mammals Burke Museum mammalogists move two 250+ pound whale skulls from storage to the museum gallery in preparation for Meet the Mammals!

(1962) Ssaki (Mammals) Some of Polanski's first films The Short Films of Roman Polanski - (1962) Ssaki (Mammals) "Waiting for Godot" on ice and snow, without words. Against a barren winter landscape, a figure approaches: it's a man, pulling a small sleigh on which another man sits, plucking a dead bird. They stop to trade places; the one now on the sleigh takes out his knitting. Accidents, misunderstandings, disagreements, and an outright fight await our absurd protagonists as their trip to nowhere continues, first with one pulling, then the other. What if they were to lose the sleigh? What rules of civilization and partnership would guide them then?

Planet mammals face mass extinction Half of the worlds mammals are declining in population and many are at risk of extinction. Thats according to the Red List, the worlds most respected scientific listing of endangered species which was unveiled on Monday at the International Union for Conservation of Nature (IUCN)s World Conservation Congress in Barcelona.

Mammals Vs. Dinos- T-Rex Bite Force On the Science Channel's "Mammals vs. Dinos," meet Tyrannosaurus Rex, one of the largest, carnivorous dinosaurs known. Here, an alligator's bite force is measured and compared to T Rex bite marks.

Mammals Vs. Dinos- Supersaurus Life Span On the Science Channel's, "Mammals vs. Dinos," meet Supersaurus, one of the largest dinosaurs of the Jurassic period. Supersaurus was an herbivore whose lifespan could be as much as one hundred years.

Mammals Vs. Dinos- Coelophysis Domination On the Science Channel's "Mammals vs. Dinos," meet Coelophysis, a dinosaur who was a dominant force during the late Triassic. Coelophysis walked upright and was a skillful hunter, giving it an early evolutionary edge over its prey.

The Mammal Song An expression of my love for my mammals with some added factoids on the side!.... DELISH!

Ugandan chimps hunting - Life of Mammals - BBC In this BBC clip, Sir David Attenborough looks at how Ugandan chimpanzees hunt in the rainforest. Visit for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here

World's Most Powerful Predator - Life of Mammals - BBC Before human beings had weapons, as David Attenborough describes in The Life of Mammals, the Siberian tiger was the most powerful killer on Earth. Amazing footage of this beast in action from the BBC. Visit for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here

Bats: Misunderstood Mammals of Flight (Part 2) Planet Bonehead podcast on bats.

Mammals What is a mammal? A short video presentation on the major traits of mammals.

Polar Mammal Adaptations This short enhanced podcast describes the kinds of adaptations that allow mammals to survive in the polar regions. Excerpt of an interview with Dr. Ross MacPhee, curator and researcher at the American Museum of Natural History. For more information, visit the Beyond Penguins and Polar Bears cyberzine:

Marine Mammals In Captivity "look at it from their point of view!"; "look at it through their eyes!" "and realize, you get to go at home at night" "they don't", "that is their home!" The home of a dolphin and orca is the ocean and not in a concrete tank where the principals and motivations are not always about rehabilitation, rendering sick and injured animals back to health or conservation. But solely about the selfish interests of making money and exploiting these innocent beautiful and captivating animals for show in the name of tourist dollars. The ocean is where they were, where they belong and where they should and ultimately forever should be. Please do not patronize the marine parks, their orca shows and their captive swim with the dolphin programs. Which are only in the interest of the individual and the money they can make. It's incredibly cruel and heartbreaking how they came to be there in the first place and very sad to see them from the free life they once had to the now un-free one in which they live. Please visit my blog on my profile for more information and the reasons why we shouldn't and cannot keep these incredible wild animals in captivity. This video was uploaded with permission from The Humane Society of the United States. Thank You

Mammals Vs. Dinos- Oldest Mammal Fossil On the Science Channel's "Mammals vs. Dinos," paleontologist, Adrian Hunt discovered adelobasileus, the oldest known mammalian fossil in the Chinle Formation. Adelobasileus is thought to be the common ancestor of mammals and lived 200 million years ago.

Hedgehog Mating Rituals - Attenborough - Life of Mammals - BBC In the gardens of London during the hours of darkness in Springtime, a strange and fascinating ritual is taking place - hedgehog mating. This entertaining clip shows David Attenborough examining how these prickly creatures get intimate. From the BBC's Life of Mammals.

How marine mammals survive underwater life - BBC wildlife Arctic seals have adapted so well to the sea that, even though still reliant on air for survival, they can be seen performing impressive displays underwater in the attempt to keep all the females occupied. Watch more 'Seals - Invaders of the Sea?' clips with BBC Worldwide here:

The Marine Mammal Center Founded in 1975, The Marine Mammal Center is a nonprofit organization that rescues, rehabilitates and releases injured, sick and orphaned marine mammals (seals, sea lions, dolphins, porpoises, whales and sea otters) along a 600 mile stretch of California coastline, from Mendocino County through San Luis Obispo County. Before The Center was established, stranded marine mammals were either left to die or were destroyed as threats to public health.

Strange mammals leap from tree to tree - Attenborough - BBC Earth These strange creatures leap from spine covered tree to spine covered tree. Their technique is amazing as they are able to leap from tall tree trunks to land safely and securely, even with babies - if they can avoid their four footed predator. From the BBC's Life of Mammals documentary series. Watch more high quality videos on the BBC Earth YouTube channel here: and visit for all the latest natural history exclusives and fantastic new wildlife videos.

Wolf Hunting - Attenborough - Life of Mammals - BBC Communications between animals is essential if they are to survive. In this clip from the BBC's Life of Mammals documentary series, David Attenborough demonstrates this skill, as the winter bound wolves attempt to secure a meal Visit for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here

What is a mammal? Learn what makes a mammal a mammal. After watching video try our animal classification game at Or read more about animal classification here:

Triumph of the herbivores - Life of Mammals - BBC Stunning footage of herbivore mammals out-maneouvering their carnivore predators. Includes indredible shots of zebras, gazelles and buffalo being persued by cheetahs, lions and even baboons; making death-defying escapes. From the BBC's Life of Mammals documentary series. Visit for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here

Mammal Evolution Mammal Evolution.