The world's largest invertebrate remained hidden from humanity until a tantalising glimpse 100 years ago. But it would be ...

For an animal of such enormous size, the colossal squid has an extraordinary ability to keep itself hidden from human eyes ... Soviet ship's crew crouching next to the dead squid.

The only other time that humans have laid eyes on a live adult colossal squid was in 2007, when a female was accidentally ...