animals

Ancient documents decay over time. Understanding the underlying cause of the deterioration is obviously necessary to prevent or reverse it.
Biologists have long known that small animal species, if they migrate from the mainland to an island or other isolated habitat, will evolve over time to become larger.
It has been a gruesome few weeks for United Airlines. After making international headlines for dragging a paying customer off a plane, it earned yet more notoriety when a giant bunny died on one of its flights. 
Are you your dog? Is your dog you? Or, elements of your personality traits anyway. Researchers set out to explore these and other queries. Can we extrapolate from this new science to apply these questions to your human children?
Though we consider ourselves quite clever (Homo sapiens means "wise man"), humans are notoriously poor at risk perception.
Though reality TV would seem to challenge the notion, highly social creatures tend to be more intelligent than non-social creatures. The reason is because it takes brain power to communicate and thrive in a society.