Animals

Thursday, 20 November 2025
19 facts about snails
19 facts about snails
Also called gastropods
Snails are mollusks and are one of the most numerous animal species in the world. In terms of species diversity, they are second only to insects. Even ...

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Sperm whale
In the spermaceti’s head, in special chambers between the skull bones and subcutaneous sacs, there is an oily substance called spermaceti.
It is a semi-liquid substance consisting mainly of palmitoyl esters and cetyl alcohol, produced in a ...
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Horseshoe crab
The female is able to lay 60 to 120 thousand eggs at a time.
Spawning takes place in late spring and early summer. In addition to the male attached to the female, there may be other males around the copulating pair who are also involved in egg fertilization.
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Butterflies
There are butterflies whose females do not have wings.
An example of such a butterfly is the species Thyridopteryx ephemeraeformis, whose female never deve ...
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European pine marten
The male's testicles develop about a month before mating.
When females come into heat, there is a gradual regression of the testicles. The first sign of heat in females is an enlarged vulva.
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Aye-aye
Their thinnest finger has a ball-and-socket metacarpophalangeal joint, which makes them unique in the animal world.
They also possess a sixth digit, called a pseudo-thumb.
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Kiwi bird
Because of the high death rate, the kiwi population is managed.
In unmanaged populations, their numbers decline by roughly 2% a year, mostly because of the small survival rate of kiwi chicks in the wild.
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Housefly
Fly larvae are collected or raised as fodder for livestock.
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Hippopotamus
Thanks to drug lord Pablo Escobar, hippos have also found their way to Colombia.
The animals were brought to Escobar's private zoo at the Hacienda Napoles ranch in the 1980s. Initia ...
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Common cuckoo
It has a grayish, slender body and a long tail, the plumage resembling that of a sparrowhawk.
The legs are relatively short compared to the rest of the body. The underside of the body is decorat ...
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Otters
Depending on the species, otters can hold their breath underwater for five to eight minutes.
Their lung capacity is approximately 2.5 times larger than other mammals of similar size.
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28 facts about spiders
28 facts about spiders
One of the first creatures to appear on land
The first ancestors of today's specimens appeared on Earth about 400 million years ago. They evolved from marine organisms of the chelicera subphylum. ...
17 facts about dolphins
17 facts about dolphins
Very intelligent and social mammals
They live in both oceans and rivers. They often travel in large herds, sometimes exceeding 1000 individuals. They have their language, which we have n ...
41 facts about octopus
41 facts about octopus
Very intelligent animals with amazing abilities
Octopuses are cephalopods with eight arms. So far, about 300 species of octopuses have been identified. The first octopuses appeared on Earth about 32 ...
20 facts about earthworms
20 facts about earthworms
Very useful organisms that live in the soil
They are geographically very widespread organisms. They are found in Europe, Asia, North America, and northern parts of Africa. They inhabit all types ...
22 facts about crustacean
22 facts about crustacean
Armored invertebrates
They mainly inhabit aquatic environments where they live on the seafloor (a record-breaker has been found at a depth of 10.5 km) or float in the depth ...
19 facts about central bearded dragon
19 facts about central bearded dragon
Pogona vitticeps
This interesting lizard occurs only on the Australian continent. Although its appearance may be discouraging, in fact, it is a completely harmless ani ...
19 facts about grey heron
19 facts about grey heron
Ardea cinerea
This large and interesting water bird appears in Central Europe during the breeding season and only in the north-west of the country can it be found a ...
16 facts about tasmanian devil
16 facts about tasmanian devil
Sarcophilus harrisii
They used to inhabit the Australian continent, but for unexplained reasons, disappeared from there about three thousand years ago. Today, they can onl ...
20 facts about sperm whale
20 facts about sperm whale
A vital element of the marine ecosystem
In the depths of the oceans, where sunlight loses its meaning, reigns one of the most majestic and enigmatic inhabitants of the seas–the spermaceti sp ...
20 facts about mallard
20 facts about mallard
Anas platyrhynchos
The common mallard is the most popular game bird in Central Europe, i.e. Poland. It is very numerous and easily inhabits various environments to which ...
14 facts about Brazilian wandering spiders
14 facts about Brazilian wandering spiders
They travel stowaway, and on top of that they bite
These spiders are found in forested areas of South and Central America. They actively hunt small animals, which they then paralyze with their venom. T ...
19 facts about American mink
19 facts about American mink
Furry commando
The American mink is a species common in North America, where it lives in the wild. It was introduced to Europe in the 1950s and spread throughout Eur ...
13 facts about European mole cricket
13 facts about European mole cricket
Gryllotalpa gryllotalpa
They get their name from the fact that they often damage crops and cause losses. At least that used to be the case, as the population of these insects ...
17 facts about spotted hyena
17 facts about spotted hyena
Laughing hyena
The spotted hyena is one of Africa’s most recognizable animals, also known as the laughing hyena. It is the largest living member of the hyena family, ...
20 facts about guinea pig
20 facts about guinea pig
Cavia porcellus
The guinea pig (Cavia porcellus), also known as the domestic cavy, is a medium-sized rodent native to the Andean regions of South America. Where it co ...
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