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Wednesday 14 November 2012

Hector Dolphin

Adaptions

DESCRIBE
Some of the key adaptions of the Hector Dolphins are:
  • Is that they have curved fin/tail. This is something they have adapted to help them be able to come up for air eaily. Since Hector Dolphins are air breathers this is a key adaption.
  • Secondly the fact that Hector Dolphins travel in groups its easier to work. For example since a dolphin has a rather intellegent brain, Hector Dolhphins have things such as warning systems and escape plans. They also have hunting plans but these are usually not requied because of the large amount of food theu can have.
  • Hector Dolphins are quite friendly to humans. Ecologist have assumed and also proven they have befriended us because they have realized that some of us are accidentally killing them off. They must believe that if they befriend us that w will stop killing them. Although so far this therory has made no progress because other ecologist have proven that it is normal for a Hector Dolphin to be very kind.
These adaptions would of come through the Hector Dolphins learning how to use them. For example  the fin/tail. They would of started using this more often and becoming smarter at using it. So the tail/fin has evoulosinised because the Hector Dolphin has to be able dive down quickly and resurface in time to breathe. The Hector Dolphin hasn't made many key adaptions but it has still made some small adaptions to help survival.

Refrences:
http://www.kcc.org.nz/hectors-dolphins
http://www.blackcat.co.nz/hectors-dolphin.html

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