The egg is three times bigger than a normal egg.
Some tardigrades can survive extreme radiation, air deprivation and even the vacuum of space.
This puppy's teeth tell a story of sickness and doting care.
Too much testosterone might explain her new growth.
The animal had bitten it off after it got stuck in a frozen watering hole.
Does it look like Dumbo to you?
When there's no snow, there's no need for their winter whites.
The site provides a rare glimpse into the people who traveled these lands 2,000 years ago.
The secret signal is only for animals like birds with specialized eyes—humans can't see it under regular light.
Technically, dolphins are whales, and whales are more closely related to cows than sharks.
Being male also heightens the risk.
Cheetahs keep their eyes on the prize with the help of a strong sense of balance.
Dexter didn't make it on the plane, and neither will fake service animals.
It's related to an extremely deadly spider, but it's in its own genus and, thankfully, its venom isn't toxic enough to kill a human.
This is not a rat washing itself like a person.
While a pig nursing a puppy might seem odd, mixed-species families aren’t uncommon.
This makes 11 total Archaeopteryx specimens.