They're a symbol of the beauty of nature - but perhaps, for not much longer.

In a first for science, researchers have created mice that share the traits of the extinct woolly mammoth. Watch this report for more details!

Researchers in South Africa are looking for a way to save the African Penguin from extinction while balancing the needs of fishing industry. At the start of 20th century, Africa's only penguins numbered in the millions, but the global...

Food scarcity and habitat decline has seen a drastic fall in numbers of the African Penguin, putting it on the International Union for Conservation of Nature's critically endangered list. Watch this report for more details!

The U.S. Fish and Wildlife Service is pushing for added protections for the monarch butterfly after suggesting multiple populations could go extinct in mere decades. (Scripps News)

The loss of sea ice in Antarctica has caused unprecedented breeding failure for emperor penguins, researchers say. According to British Antarctic Survey (BAS) scientists, the penguin colonies experienced unprecedented breeding failure in...

A 3D animation depicts the skeletal and circulatory system of a Sauroposeidon.

A 3D animation depicts the muscular and skeletal systems of dinosaurs.

A computer-generated anatomical model of a Tyrannosaurus Rex highlights its visual and reproductive systems.

An animation depicts the descent of an egg through a Sauroposeidon dinosaur 's reproductive system.

A computer-generated animation reveals the muscular system of a running Tyrannosaurus-rex below its skin.

A computer-generated anatomical model of a running Deinonychus features its skeletal system and skull.

A computer-generated anatomical model of a running Deinonychus features its tail and skeletal system.

A Tyrannosaurus Rex and a triceratops tangle in a forest: a 3D animation depicts the skeletal and muscular systems of a Triceratops.

A 3D animation depicts the skeletal system and armor of an Ankylosaurus.

A Quetzalcoatlus flies above a valley: a 3D animation depicts the nervous system of a Quetzalcoatlus: a Quetzalcoatlus flies over a river valley.

A computer program analyzes running dinosaurs; a Quetzalcoatlus takes flight in a jungle; a computer-generated anatomical model features the muscular system of a Quetzalcoatlus.

A 3D animation depicts the skeletal systems of dinosaurs.

A computer-generated animation reveals the skeletal system of a running Deinonychus below its skin.

Salamander - threatened with extinction

A computer animation depicts the behavior and anatomy of a Tyrannosaurus Rex and a triceratops.

Mammoth springs in Yellowstone National Park

Low Angle tilt-down - A giant, prehistoric squid descends to the ocean floor. /

A computer-generated anatomical model features the muscle fibers of a flying Quetzalcoatlus.