A gene named after sonic the hedgehog is all that separates scales from feathers

Can we really bring back long-extinct animals, or are scientists just making close copies?

Birds can transport us to another time and place entirely,

The ichthyosaur fossil was discovered in 2001, but ...

Amazing answers to your curious questions

Unfairly maligned as a sneaky troublemaker, the quicksilver ferret is a characterful, curious and highly intelligent creature–with fascinating regal and cultural trappings to boot, writes Octavia Pollock

Nature’s spiky deterrents–thorns, spines and prickles–may be quick to catch us out, but they can also prove to be a useful ally, discovers Laura Parker