Crocodiles on Shores– By: Alice Z.

The largest living reptile among the world is the saltwater crocodile. This reptile lives in a freshwater habitat that extends east-west from East India to Fiji and north-south from southern China to northern Australia. These crocodiles have been found on several islands throughout these borders. This suggests that the crocodiles are somehow island hopping. No one knows for sure how the crocodiles traveled onto the land because these crocodiles are excellent short distance swimmers but aren’t good at land distant swims.

One theory, led by a team of biologists from Hamish Campbell of Australia’s University of Queensland, suggests that these crocodiles would make use of the tides. They would ride at the surface currents that swept water toward the mouths of rivers. If the currents changed, the crocodiles would wait on the river banks or sit on riverbeds until the surfing conditions improved.

This team has been confused to why these saltwater crocodiles would surf such long way. Some suggest that they have traveled in search of mates or food. The only thing that is known is that these crocodiles traveled a long way to get to the shores.

Discussion Questions:

  1. Do you think that this theory is true? Why or why not?
  2. Why do you think that these saltwater crocodiles would surf such long journey to reach the shore?

Link:

http://news.nationalgeographic.com/news/2010/06/100607-science-animals-crocodiles-hunter-surfing/

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~ by Student Entry on June 15, 2010.

One Response to “Crocodiles on Shores– By: Alice Z.”

  1. It is very weird that these crocodiles are ‘surfing’ so far, just to get to these shores. Unfortunately, I don’t have a theory as to why they do it, but if I were to give my opinion, I would agree with the scientists. Most likely, they are comming towards the shores to mate or to find food. What other reason could there be? So, most likely, the current theory is true. This is a very mysterious topic! But, good job writing! I really like how you added what the many different scientist’s ideas were.

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