Animals

Saturday, 9 May 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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Platypus
Platypuses are equipped with electroreceptors, which makes them a phenomenon among modern mammals.
Thanks to them, they track their prey through changes in the electric field. The platypus can percei ...
Fleas
There are 2,500 known flea species.
New species are being continuously identified.
Aye-aye
They mark their territory with a scent.
Aye-ayes rub their cheeks and necks against branches, leaving scents that deter other males from entering the territory.
Tasmanian devil
The lifespan of Tasmanian devils in the wild is about 5 years.
In captivity, they can live up to 7 years.
Sea otter
To maintain body temperature, sea otters need to consume at least 25% of their body weight a day.
Mallard
They produce one brood a year, the female lays 8 to 13 eggs.
They are light cream and measure 58 x 32 mm. They are laid every other day and the female begins to ...
Brittle stars
The madreporite is a sieve plate with numerous holes that are a part of the skeleton of most echinoderms.
In most present-day species it is located at the apex of the upper side of the body, only in brittle stars, it is located beneath the body.
Toco toucan
Toco toucans have an annual reproductive cycle.
The laying of eggs is preceded by a period of courtship in which fruits are thrown at each other. The female usually lays two to four eggs a few days after mating. 
Pink river dolphin
Their diet consists of 53 different species of prey.
They feed on catfish, small river fish, crabs, shellfish, crustaceans, snakes, and small turtles.
American robin
There are about 320 million of this birds, so they are not an endangered species.
IUCN lists robins as LC (least concern).