Animals

Thursday, 29 October 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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Tigers
Tigers rarely climb trees.
They rest in the shade under trees, and on the Siberian steppes in rock clefts.
Brown recluse spider
It is usually light or dark brown, but also in shades of grey.
Horseshoe crab
Limulus is a genus of horseshoe crab, with one extant species, the Atlantic horseshoe crab (Limulus polyphemus). Limulus  first appeared on earth about 425 million years ago during the Silurian period.
Leeches
Leeches are hermaphrodites.
They use cross-fertilization and developed complex mechanisms to prevent self-fertilization. Leeches ...
Platypus
They have webbed feet.
The legs of the platypus are placed on the sides of the body, which is a reptilian feature of this a ...
Moose
The most dangerous natural predator of the moose is the gray wolf, which regulates the population size by eating the weakest individuals.
The moose's enemy is also the brown bear and the Siberian tiger, as well as humans. Since the Stone ...
Portuguese man-of-war
They are neuston organisms, which means they live on the surface of the water.
Leeches
The cephalic segment of the leech is made up of a prostomium and four segments.
Eyes are located on the prostomium. There may be from one to ten pairs of different shapes and sizes. Eye positioning varies between species, and there are even ones that do not have eyes at all.
Leeches
Pliny the Elder wrote that leeches suck blood and are helpful for "rheumatic pains and all kinds of ailments and fevers."
In June 2004, the US Food and Drug Administration approved leeches for medical use, recognizing them as a therapeutic agent.
Tiger sharks
They are also scavengers.
They feed on dead animals, including whales.