Animals

Tuesday, 25 November 2025
27 facts about turtles
27 facts about turtles
The only vertebrates so armored
The first turtles appeared on Earth at the end of the Permian about 240 million years ago. Although the first ones had neither plastron nor carapace, ...

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True seals
Seals do not have auricles.
Sea lamprey
A single female of sea lamprey lays between 30,000 and 100,000 eggs.
After mating, both parents die.
Saola
They reach 150 to 200 centimeters in length and weigh approximately 90 kg.
Mallard
During the breeding season, it is found in various regions around the world.
They occur in northern regions of North America, Greenland, northern Europe, and central Asia as far ...
Coyote
The gestation period for a coyote is 63 days.
The average litter consists of six cubs. After birth, the cubs are completely dependent on their mot ...
Rice's whale
Females of the species are slightly larger than males.
They can reach a weight of 20 tonnes.
Luna moth
Male luna moths can sense female pheromones at a distance of few kilometers.
Specific pheromone developed by luna moths does not affect any other insect species. Mating occurs with the first male encountered by a female.
Ocean sunfish
Typically adults measure about 1,8 m (5,9 ft) in length and 2,5 (8,2 ft) fin to fin. Weight may vary from 247 to 1000 kg (545 to 2205 lb).
Largest individuals may reach 3,3 m (10,8 ft) in length and 4,2 m (13,8 ft) vertically and weigh up to 2,300 kg (5,070 lb). Research suggests that females may be a bit larger than males.
Brittle stars
Some species, however, are hermaphroditic or protandric.
Protandric animals produce male and female gametes at different times. Hermaphroditism is the occurr ...
Axolotl
Axolotls that undergo metamorphosis change their physiology.
Metamorphosis allows axolotls to adapt to terrestrial conditions. They develop eyelids, muscle tone ...