Animals

Tuesday, 14 April 2026
27 facts about turtles
27 facts about turtles
The only vertebrates so armored
The first turtles appeared on Earth at the end of the Permian about 240 million years ago. Although the first ones had neither plastron nor carapace, ...

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Crustacean
Krill also appears in the trade, which, although it is one of the largest biomasses on the planet (Antarctic krill alone is estimated at 380 million tons) is caught in quantities not exceeding 120.000 tons per year.
Krill is often used not as a dish but as a raw material for the production of oil - a very healthy d ...
Spotted hyena
Spotted hyenas have a rich repertoire of vocal communication.
The most common sound is a loud “shout” heard over a radius of several kilometers. This sound is use ...
Bonobo
The statistical duration of sexual intercourse in bonobos is about 13 seconds.
Sex for these animals is primarily a means of interpersonal communication and not, as in most other ...
Leeches
Thanks to these properties of the saliva, leeches, especially the medicinal leech (Hirudo medicinalis), are used in hirudotherapy.
It is a treatment method known to humanity since the beginning of civilization.
Brittle stars
Most brittle stars reproduce sexually.
Gametes are being produced inside the central disc and released to the external environment when ful ...
Amur leopard
Its name derives from the Amur river.
It is the tenth longest river in the world, flowing through China, Mongolia, and Russia.
Hedgehogs
They live in Europe, Asia, and Africa.
Hedgehogs occur naturally neither in Australia, nor any Americas. There are several species present ...
Hedgehogs
Despite their ability to fend off most predators, hedgehogs are defenseless against badgers.
Badgers’ long and durable claws are not prone to injury while in contact with hedgehogs’ spikes. The hedgehog population in habitats domiciled by badgers is typically very small.
European tree frog
Tree frogs traipse around in a tree.
This distinguishes them from frogs, which croak or retch. The jabber has a different sound, similar to that of a rattle. You can listen to it on the National Forest website.
Stingrays
Female stingrays birth up to 6 pups a year.