Some animals appear to have taken Nature’s gifts and stretched them to extreme limits. With these two natural curiosi...

David discovers the curiosities that have led to accusations of forgery but have ultimately helped us rethink evoluti...

David encounters two examples where Nature has tinkered with the aging process to alarmingly different effect – the f...

The single spiral tusk of the narwhal inspiration for tales of unicorns and the myriad variations on the twist of the...

Zebra stripes vary subtly between the different species but there is one group of animals that has evolved colourful ...