Sloths have been moving slowly for 64m years.
What are the oldest living animals on the planet?
Scientists have uncovered the genetics that explain the snake's impressive length – and used the science to create extra-long mice.
Understanding the genetic origins of sharks' teeth could one day lead to new treatments for humans.
Animals and plants will need escape hatches to move to cooler climes as the planet warms, but few parts of the U.S. have the natural habitat available for these migrations.
Our planet's huge range of environments has led some animals to evolve some bizarre but very useful features.
Red deer on the Scottish isles have the same DNA as their ancient ancestors – scientists are now uncovering how they got there in the first place.
The huge numbers of unwanted dogs killed by the greyhound racing industry has led the New South Wales government to outlaw the sport.
The Earth is full of many varied species from the largest mammals to the tiniest organisms. But we now think there could be ten times more species than was originally thought.
It might sound strange but the world of animal-computer interaction could improve their welfare and help us understand them better.
We tend instinctively to value human lives over non-human ones. But is there a point where the scales might tip the other way?
The shooting death of Harambe the gorilla has once again raised concern for the well-being of zoo animals. But animals in zoos may be fated by the very institution we have created to protect them.
There is more than pure instinct helping lost dogs find their homes.
When you think about it, it's a bit strange to view food through a lens of "meat" and "not meat" – especially when plants consume animals, and vice versa.
A new project hopes to drill through the Earth's crust for the first time. But what beasties lurk deep beneath our feet?
According to the science of selfies, they seem to tap into some deep psychological desires.
Accusations of animal cruelty at this year's Crufts have reminded us of the mostly hidden dark side of pedigree breeding.
The natural world is full of trickery and deception in the struggle for survival.
Around 5% of common garden snails in and around Sydney contain larvae of the parasite Angiostrongylus cantonensis, commonly known as the rat lungworm.
The answer lies in the history we share with our canine companions.