Animals are often able to adapt to their human-influenced surroundings with remarkable ease.
New research suggests the ancestors of reptiles, birds and mammals might have walked more efficiently on land than previously thought.
Observation could improve filtration systems and boost conservation efforts.
Armadillos could help fill ecological voids left by the Southeast's waning gopher tortoise populations.
A new study shows that colonies of as few as six ants divvy up duties.