Whale is the common name for a widely distributed and diverse group of fully aquatic placental marine mammals. They are an informal grouping within the infraorder Cetacea, usually excluding dolphins and porpoises. Whales, dolphins and porpoises belong to the order Cetartiodactyla with even-toed ungulates and their closest living relatives are the hippopotamuses, having diverged about 40 million years ago. The two parvorders of whales, baleen whales (Mysticeti) and toothed whales (Odontoceti), are thought to have split apart around 34 million years ago. The whales comprise eight extant families: Balaenopteridae (the rorquals), Balaenidae (right whales), Cetotheriidae (the pygmy right whale),
The tiger is the largest feline in the world, with the tiger growing to around 2.5 metres in length. The tiger is the most powerful of all the big cats, and is native to east and southern Asia. The tiger is feared by most human beings who inhabit settlements within the tiger's territory.
There are six different subspecies of tiger which are the Bengal tiger, tiger, the Indochinese tiger, tiger, the Malayan tiger, tiger, the Sumatran tiger, tiger, the Siberian tiger and the South China Tiger. The white tiger tiger is actually a Bengal tiger tiger and is therefore not a subspecies itself.
The average tiger weighs around 300kg and a tiger can stretch its body (and tail) to roughly 4
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Bats are found all around the world and there are hundreds of different species of bat, living in caves and forests, particularly in the Southern Hemisphere. The bumblebee bat found in the jungles of Thailand, is the smallest mammal in the world and weighs less than a penny!
Bats hunt at night using their exceptional sight to pick out their prey, generally insects, frogs and small rodents. The size of bat varies with the species, but some bats can have a wingspan of over 2 meters, like the Indonesian giant flying fox! Smaller bat species can be as little as only 2 cm.
The Niah Caves in the Malaysian state of Sarawak, on the tropical island of Borneo, is particularly famous for th
