Animals

Friday, 1 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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Sperm whale
The sperm whale’s brain is the largest in the world, five times the size of a human brain.
It is the largest known brain of any modern or extinct animal, weighs on average about 7-8 kilograms, and has a volume of about 8000 cubic centimeters.
Spinosaurus
Spinosaur was a giant theropod dinosaur living in the Late Cretaceous period.
It was 99 to 93 million years ago in today's North Africa territory.
Hawksbill sea turtle
They fell prey to sharks, large fish, octopuses, and crocodiles.
Manatees
Manatees are good swimmers.
Usually, they swim at a speed of 5-8 km/h, but in some cases, they can reach up to 30 km/h. They can stay underwater for up to 15 minutes.
Sperm whale
Sperm whales are the deepest-diving marine mammals.
They usually dive to depths of 300 to 800 meters, but sometimes it’s from 1 to 2 kilometers or even ...
Southern cassowary
The Male takes care of the young.
He is responsible for hatching the eggs and caring for the hatchlings. Hatching usually takes up to ...
Brown recluse spider
It is approximately 6 – 20 millimeters (0.24 – 0.79 inches) tall.
Common Surinam toad
The flattened shape of the ridge is a natural adaptation for reproduction.
Blue tang
The royal blue tang reaches sexual maturity at 9 - 12 months of age.
Crustacean
A characteristic feature of crustaceans is two pairs of feelers, and three pairs of mouth legs, and all but the first pair of feelers are two-branched (they separate into exopodite and endopodite).
In comparison, arachnids have no sensilla at all, and insects only have one pair.