Animals

Friday, 6 November 2026
15 facts about fleas
15 facts about fleas
External parasites
Fleas are one of the most hated insects by pet owners. Once they find their way onto a dog or a cat, they are very hard to remove. Reproducing at a ve ...

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Moose
The Swedes used moose in the army as draft, pack, and riding animals.
Since the 1930s, attempts have been made to domesticate moose, initially to use them in the army (experimental moose farms were established in the USSR) and also in agriculture.
American bullfrog
Their skin colors are typically green or greenish brown, with dark spots on the sides and on the back.
Brittle stars
Brittle stars appeared on Earth in the early Ordovician era about 500 million years ago.
The oldest known representative of the group is Pradesura jacobi, which lived between 478,6 to 644 m ...
European tree frog
The lifespan of a European tree frog is about 15 years.
This is probably their maximum lifespan; in the wild, they usually reach a maximum age of 6 years.
Octopus
Octopuses have the so-called siphon, i.e. the organ responsible for gas exchange, removal of metabolic waste, and secretion of ink.
Spotted hyena
Spotted hyenas are easy to tame, but difficult to train.
Kept in captivity, where they can live for 15-20 years, and they can be destructive.
Black Caiman
It is the largest species of the family Alligatoridae.
Leopard geckos
Its name – macularius – refers to dotted, leopard-like skin.
There are many variations of colors and patterns, the most common being yellow with irregular black spots. Dotted skin helps them camouflage from predators.
Hawksbill sea turtle
They are resistant to various toxins contained in several sea sponges species.
Because of that, there is little competition for food. It makes them also an essential part of the coral ecosystem.
Pink river dolphin
They mate from November to late October.