Animals

Dolphins use signature whistles to represent other dolphins – like names
Mouse embryos with beating hearts have been created entirely in the lab 
Great white sharks occasionally hunt in pairs
AI has mapped all of the world’s known ant species
artificial cornea
Eye implant made from pig skin reverses blindness in 14 people
Only human Lyme vaccine in development enters phase 3 trial
dead pigs
Yale team partially revives dead pig organs an hour after death
Crows are self-aware just like us, says new study
Feeding insects to cattle could make meat and milk production more sustainable
Large study of 20,000 cats and dogs could help pets live longer