The sheep specimen is a rare example of "natural" mummification.
Between Jan. 1 and July 2, 841 manatees died near and off the coast of Florida, a record-breaking number.
Analysis of a well-preserved fossil from South Africa provided a "missing puzzle piece" for the evolution of dinosaur respiration.
Paleontologists have revealed that a group of dinosaurs, known as alvarezsaurs, underwent a rapid reduction in size to adapt to widespread ecosystem changes.
An invasive species is a type of animal, plant, fungus or any other living thing that has arrived in a new environment and can harm other species there.
Here are our favorite stories about sharks, from an ancient Greenland shark to a behemoth "queen of the ocean."
A lab study suggests that brown trout can experience withdrawal from meth after exposure to the drug.
Dinosaurs ruled the Earth for about 174 million years. There were many types of dinosaurs, in all shapes and sizes.
Scientists have discovered how subglacial lakes are able to support diverse microbial communities by replicating natural erosion of lake sediments in a lab.
This is the first time ever that an animal has been documented performing this bizarre trick. The researchers who discovered it think studying it could lead to advancements in robotics.
Some animals lead quiet lives, while others prefer constant chatter. Why do some animals vocalize more than others, and what are they saying?
Scientists have uncovered an enormous fossil 'nursery' containing nearly 3,000 animal specimens from 518 million years ago, more than half of which are juveniles and babies.
The dinosaurs were "particularly prone to extinction" even before the asteroid hit, a new study suggests.
Video and computer modeling shows how fire ants create bridge extensions from their enormous rafts, made of tightly packed ants numbering in the tens of thousands.