saltwater crocs

Mystery of the migrating crocs unravelled.
 
Three crocodiles relocated from their homes in Far North Queensland have been tracked swimming between 10 and 30 kilometres per day according to a collaborative research project by The University of Queensland, Australia Zoo and Queensland Parks and Wildlife Service.

Professor Craig Franklin, from the University’s School of Integrative Biology, said one relocated crocodile swam around the northern tip of Australia to reach home – covering more than 400 kilometres in 20 days. "We often thought crocodiles tired very quickly but here we show very clearly that they are capable of moving long distances for days on end," Franklin said.
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All three monitored crocodiles were moved by helicopter between 52 and 130 kilometres away but still found their way back to their capture sites. One crocodile was flown across Cape York Peninsula from the west to east coast, and then circumnavigated the peninsula to return home.

He said crocodiles probably used many factors such as its position to the sun, magnetic fields, sight, and smell to navigate.

"Crocodiles are more closely related to birds than they are any other reptile so they are possibly using navigation systems similar to birds?"

 
It’s not a mystery to Dan in Pitt Meadows,  He says they forgot to blindfold the crocs when they moved them by helicopter.
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