Elephants not only tend to grieve for their dead, they also have the ability to recognize skulls of other elephants. They examine the remains with their feet and trunks, paying special attention to the skulls and tusks of even long-dead elephants.
A chimpanzee that was socialized to humans since birth could log onto a computer to look at pictures, watch television using a remote control, brush his teeth, feed hay to his owner’s horses, water plants and learned the schedule of passing ice cream trucks.
In 1953 there was a dog named Lampo who would ride trains in Italy. He memorized the schedules and would go on longer and longer trips to places all around Europe. In his life time it is estimated that took about 3,000 different rides and became famous around train stations through out the nation.
In 2006 over a 1000 toads swelled up to 3 times their size and exploded with no apparent reason, causing panic at the possibility of a new virus. The real reason? Local crows had figured out how to peck out the frog’s highly nutritious liver while avoiding their poisonous skin.
Scientists once tested the intelligence of beavers by playing the sound of running water on a field. Eventually, the beavers began covering the tape player with branches and mud.
An orangutan from a zoo reintroduced to the wild in Borneo began spear fishing after watching local fisherman.
An orangutan named Fu Manchu repeatedly escaped from his cage using a key he had created from a piece of wire. He would hide the key throughout the entire day in his mouth, prohibiting his zookeepers from finding it.
Nazi scientists claimed to have trained a dog to call “Adolf Hitler” as “Mein Führer”.