Animals

They are popular additions to house aquariums, where breeding is relatively easy – all that is neede ...

They live in organized groups with a strict hierarchy and complex social rules.

They do not do well in captivity. In fact, every individual ever kept in captivity died of an unknown cause after a short period of time.

Female during the mating season awaits in a high spot on a tree for males to compete with each other ...

Usually, acts of cannibalism occur when food is scarce. Probably for this reason, juveniles have evolved the ability to climb trees and shrubs, which they lose with age.

Passeriformes are the largest order of birds, comprising about 6200 species - more than half of all ...

It does not act as a mouth, it is a sensory organ, while the mouth is located underneath it. The nostrils are located on the top of the beak.

They can become a female in adulthood. It happens for example if a dominant female is killed.

In doing so, they collect the scent around them and then transfer it to their mouth cavity to the so-called Jacobson’s organ, which analyzes olfactory signals.

Young specimens - one year old - are also able to spawn, but in their case, the quantity of eggs laid is insignificant.