Remains in an ancient cemetery provide first physical proof of live animal trade from India to Roman Egypt

The mosasaur may have occupied a similar niche to modern-day saltwater crocodiles

Orcas may be tracking salmon using dolphin echolocation and sharing prey in return

Boat found to have been waterproofed using pitch from pine trees, which were rare in Denmark

Lead in urban Roman infrastructure may have led to long-term impacts on the population’s health, scientists say