Animals

Friday, 27 March 2026
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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Adder
They are oviparous animals.
This means that the young remain in egg membranes inside the mother’s body and hatch just before, during, or immediately after laying their eggs.
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Snails
The circulatory system of snails is open. This means that hemolymph (equivalent to blood) is pumped into the body cavities surrounding the internal organs.
The oxygen carrier is hemocyanin and the copper it contains. Hemocyanin is blue.
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White-browed tit-warbler
At the end of the mating season, white-browed tit-warbler joins flocks of over 25 individuals.
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Arctic fox
Polar fox fur provides the best isolation among all mammal furs. They tolerate temperatures down to – 94 Fahrenheit.
They are perfectly anatomically adapted for this. Thick and multi-layered fur provides excellent the ...
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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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Alpaca
Alpacas have three eyelids.
The third eyelid is called the haw and moves horizontally.
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Ocean sunfish
Ocean sunfish have a very peculiar appearance.
The body is tall, laterally flattened with a crescent-shaped tail that replaced the caudal fin in th ...
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Housefly
Because of their ectothermic nature, they are most active in warm conditions.
The search for warmth explains why flies so eagerly seek shelter in human dwellings. 12 generations may hatch in temperate regions per year; in the tropics and subtropics, more than 20.
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European pine marten
Martens have a perfectly developed sense of sight, smell and hearing.
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Hummingbirds
Hummingbirds' metabolism requires them to consume twice their body weight in food due to their high daily activity.
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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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