Some dolphins in Australia learn to wear a sponge on their beak – which allows them to safely forage through rocky seabeds ...

Who are you calling big nose? The bizarre 'unicorn fish' that looks almost human. By MARK PRIGG . Published: 07:07 EDT, 30 August 2012 | Updated: 18:17 EDT, 30 August 2012 ...

Fish may be smarter than we thought. Not only can some recognize human faces, but others can use their senses in a way that it was believed only humans and other mammals could manage.