Animals

Their sexual dimorphism is not visible through coloration.

The pike eggs are sticky and yellow, 2.5 to 3 mm in diameter.

Most octopuses hatch from eggs as paralarvae and function as plankton for the first weeks or months. These small octopuses feed on zooplankton, arthropod larvae, or copepods.

Fossas are highly territorial.

When food is abundant, polar foxes can join their families to form pack-like structures.

Jellyfish is in fact a name of a free-swimming phase in the Medusozoa life cycle.

The distinctive feature of this bird is its huge bill. Not everyone liked its appearance, however. The French naturalist Georges-Louis Leclerc de Buffon called the beak of the toco toucan a "gross monstrous" addition.

The most dangerous natural predator of the moose is the gray wolf, which regulates the population size by eating the weakest individuals.

Larval stage of cabbage white is considered a serious pest and can do a lot of harm to agriculture.

Spotted crocs are found in large areas of Africa, south of the Sahara.