This weird weekly routine remains one of the biggest mysteries surrounding sloth behaviour. While there are many different theories, the likely explanation is that it’s all about communication ...

The sloth is the world's slowest mammal, so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of its Central and South ...

To mark the BBC Radio 4 documentary The Power of Sloth, zoologist and author of Life in the Sloth Lane, Lucy Cooke, unleashes her inner sloth to discover why being lazy could actually be the ...

The Cleveland Metroparks Zoo announced Tuesday that a sloth bear cub was born back in December. The unnamed female cub weighed 16 ounces at birth and spent time bonding with her mother Shiva.