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Jun-2021

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Great White Sharks

a) There are fewer Great White sharks in Australian waters than was once believed. This is because tagging has shown that sharks travel considerable distances, and a shark recorded east of Bass Strait one week is often recorded west of Bass Strait the next. However, sharks always return to their place of origin to breed.b) A recent research study has shown that Australian Great White shark populations have remained surprisingly distinct as, despite travelling long distances, these sharks do not breed away from their original areas. This means that local shark habitats may have a greater effect on sharks than has been believed up to now.c) There is a greater variety in the Great White shark populations in Australian waters than was previously thought to be the case. This means that some types of shark are actually more endangered than was believed. Scientists are therefore developing conservation programs which will help to protect these threatened species.d) An investigation of Great White sharks in Australian waters has come up with some unexpected conclusions, as it found that the genetic make-up of sharks in one area was quite distinct from those found elsewhere. This made scientists realize that sharks do not swim as far away from their home areas as used to be thought.

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