| Crocodiles are archosaurs, a name which tells you they
are related to dinosaurs. They share genes with alligators and caimans
but belong to a different family; all appeared on earth about 80 million
years ago and, somewhat surprisingly, they are close relatives of birds.
Individuals of the larger species can live up to 70 years. |
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Crocodiles live throughout the tropics – in America,
Asia, Africa and Australia. Most inhabit freshwater rivers and lakes,
but they can live in seawater, and the saltwater crocodile of Asia and
Australia is one of the more dangerous of the species, being the largest
reptile alive. Crocodiles eat fish, birds and mammals, which they catch
using an ambush technique. Like snakes, they have a slow metabolism and
can go a long time without food. The saltwater crocodile and the Nile
crocodile between them kill hundreds of humans a year. Some deliberately
swallow stones to help in grinding up their food and perhaps to act as
ballast. Don’t be deceived by their enormous weight and size though:
they can swim, manoeuvre and strike very fast. On land they have been
known to reach 17 km an hour.
Crocodiles are protected in many countries, but they are also farmed for
their skin to make wallets, briefcases and belts. In Australia, South
Africa and specifically Thailand their meat is also served in
restaurants. |
| The island of Koh Samui, situated in clear waters some
400 km South of Thailand's capital of Bangkok, offers some interesting
tourist attractions. How about a visit to one of the crocodile farms on
the island? An area of 7,000 sq metres is home to 100 various species of
animals including Siam crocodiles, caimans, saltwater crocodiles,
snakes, lizards and monkeys. It's a great opportunity to watch
Thailand's wildlife. But be warned - don't try to imitate the
professional trainer! |
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