Living fossils are living things with an ancient lineage and have changed little or nothing in tens or hundreds of millions of years, and among them, triops are the oldest species.
Underwater hideout? A team of scientists has observed that some tropical spiders can dive in the face of a potential predator threat.
Wilson and MacArthur's theory of 1967 was revolutionary in the field of evolutionary ecology, but today we know much more and it has become obsolete, except as a teaching tool
A pod of river dolphins was swimming alongside an anaconda. In addition to swimming alongside the reptile, the dolphins carried it trapped in their jaws.
The human being has many superstitious behaviors, but there are many animals that also: Skinner in 1947 studied the superstition in pigeons, and the famous experiment of the monkeys, the ladder and the banana illustrates other superstitions