киты – животные теплокровные сохранять постоянство температуры тела независимо от окружающей среды. Внушительная жировая прослойка защищает животных от переохлаждения и поддерживает постоянную температуру тела около 35-40 градусов.
Киты дышат не жабрами, а легкими. У кита отсутствуют жабры, зато есть мощные легкие с отлично сформированной мускулатурой, благодаря чему киты на 90% осуществляют воздухообмен за один вдох/выдох (для сравнения: у человека воздухообмен происходит лишь на 15%). Поэтому киты, в зависимости от вида пребывать в толще воды от 10 до 40 минут, а кашалоту глотка воздуха хватает на 1,5 часа.
There are over two thousand animal spices in the world, but only two or three dozens of them are domesticated. All the rest live in the wild nature, and are not domesticable. They are usually referred to wild animals. Wild animals are distinguished from the domestic ones by external appearance, behavior and feeding habits. But the key difference between them is their attitude to humans. Wild animals always see people as enemies rather than friends. Their fear for humans is genetic, and even if you manage to tame one of them, its joeys will not be born tamed.
To my mind, the most unusual wild animals live in Australia. It is, for example, the kangaroo – the most well-know marsupial mammal, which breeds the young in the pouch. It is also a koala bear – a sluggish wooly animal which is often called the symbol of Australia. Finally, Australia is home for the emu, the second largest flightless bird in the world.
alexanders.p. my favourite writer. he wrote fairytales and poems.he likes me because his poems impressive and inspire, i represent that instead of his poems was i.this writer was famous in his modern and today.