Facts about Crocodiles

Image credit: Dean Sewell

Crocodiles have been around for 240 million years. Learn some interesting facts about these giant reptiles and test your knowledge with a quiz.

Crocodiles play a vital role in keeping waterways clean and healthy for many other species.

Crocodiles have highly developed vision, hearing and sense of smell especially, allowing them to probe their surroundings. These cold blooded reptiles rely on the external environment to regulate their body temperature. This involves moving in and out of water, basking on land, shade seeking and mouth gaping. Their behaviour is subtle – although they spend large amounts of time motionless, they are often alert watching their environment.

There are 13 different crocodile species. The world’s smallest crocodile is the dwarf crocodile which lives in the rainforests of West and Central Africa. The dwarf crocodile rarely grows to more than 2 meters in length and weighs around 18–32kg. 

Saltwater crocodiles are the largest species and the largest living reptile. Some other common names for the saltwater crocodile are: Estuarine Crocodile or Saltie.

What is the crocodile skin trade and why is it cruel?

Some crocodile species are endangered and are protected in many parts of the world. This is because during the 20th century demand for crocodile skin products – mostly bags and shoes – meant that crocodiles, including the Orinoco, Siamese and saltwater, were nearly hunted to extinction.

Unfortunately, today’s protected status does not stop crocodiles worldwide from being cruelly treated through the wildlife trade. They are poached and killed for their skins and meat, and some species – like the saltwater, Nile and Siamese crocodiles are inhumanely and intensively farmed for their skins and meat.

Each year, thousands of saltwater crocodiles are farmed and killed in Australia. Mostly in the Northern Territory and Queensland, all to be turned into non-essential, luxury handbags, belts and wallets. They are truly victims of fashion.

Crocodiles are sentient beings who experience pain and pleasure. To keep them confined in small plastic-lined concrete enclosures for years before cruelly slaughtering them for non-essential fashion items is cruel.

In the wild, crocodiles inflict serious injuries on each other and most adults are battle-scarred. On farms, their interactions must be severely limited so their skins remain undamaged by bites and scars. For the last year of their life on farms they are kept in solitary enclosures.

In many countries, crocodiles are electrocuted to immobilise them before travel or slaughter. The charge is given on the back of the neck for 4-6 seconds through a pole with a set of metal prongs on the end.

The trade and farming of wild animals creates the risk of future pandemics. While crocodile farming doesn’t pose a known zoonotic disease risk, the industry helps to validate wildlife farming in general and undermines the Australian government’s ability to call for an end to the global wildlife trade.