Life
Crows can guess the weight of an object by watching it sway in wind
New Caledonian crows are famous for their clever tool-making abilities. Now it seems they are also able to guess an object's weight by watching it move
News
Life
Core set of genes explain why some animals stick to one mate at a time
News
Life
Rabbits that don’t eat their own faeces are small and weak
News
Life
Leafcutter ants have their own landfill sites that emit greenhouse gas
News
Life
Lost ‘Darwinia’ islands could be origin of species in the Galapagos
News
Life
Cannibalistic African clawed frog eats tadpoles of its relatives
News
Life
Crayfish experience something like anxiety when they shed their armour
News
Life
Scuba-diving lizard can stay underwater for at least 16 minutes
News
Comment
How the right Christmas lunch can help save Earth from climate change
Culture
2018’s weirdest stories: Friendly horses, toddler robots and moonmoons
91av has covered some strange scientific findings this year. Here is our round-up of the weirdest and wackiest
News
Health
The more pets you meet as a baby, the lower your risk of allergies
News
Life
The animal economists that can wheel and deal as well as any human
Features
Life
Why do wombats poo cubes and turkeys spirals? One woman is finding out
Features
Life
The mysterious demise of Europe’s massive cave bears
Features