Animals

Friday, 7 August 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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Narwhal
Narwhal was first described in 1758 by the Swedish naturalist Karol Linnaeus in his work "Systema Naturae".
Sperm whale
Sperm whales have fifty large, conical teeth.
They are located in the mandible, and there are vestigial teeth in the jaw, which are covered with g ...
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 ...
Insects
Insects are invertebrates classified as arthropods.
They are the most numerous group of animals in the world and may constitute up to 90% of this kingdo ...
Northern pike
Northern pikes live in rushing streams and shallow, vegetated areas in lakes and ponds, as well as in cold, clear, rocky waters.
Because of the cannibalistic nature of these fish, young pike need places to hide among plants to avoid being eaten.
Blue tang
Royal blue tang cannot be bred in captivity. Yet.
A group of scientists managed to breed a royal blue tang in 2016, so hopefully captive-bred may be available in some time.
Horseshoe crab
Blood is being extracted from living animals.
It is estimated that between 10% and 30% of the animals do not survive the process. Approximately 500,000 horseshoe crabs are harvested for blood annually.
Ball python
It is native to central and western Africa.
Fleas
Fleas are successful acrobats.
The first mention of a flea circus dates back to 1578, and a watchmaker Mark Scaliot, who created a ...
Spinosaurus
Its weight is estimated at 12 to 20 tones.
This is a large discrepancy, but we have to remember that not many specimens were excavated so far and it is challenging to assess the definitive conclusion.