Sea turtles have evolved a set of defenses against sharks, using their unusual shape, and their ability to flexibly change direction to evade these efficient predators. In this case, a tiger shark is shown attacking a sea turtle.Read more
By combining satellite tracking data on adult turtles with models of how the world's sea water moves researchers from Helmholtz Center for Ocean Research in Kiel, Germany have showns that locations encountered in the earliest years are a powerful draw.
If these foraging sites are favourable and not too distant, the turtles will swim directly back to them as adults, time and time again. Conversely, If they are not suitable locations, the adults may simply not undertake migrations and just feed in the open ocean.Read more
A core migratory corridor of 1,150 km length and 30,800 km2 area was defined, of which 52% fell within 11 reserves.Read more
According to a study published published in the journal Conservation Biology, sea turtles today are more likely to ingest plastic than they were in the 1980s.Read more
The study focused on green turtles on Ascension Island. They found that eggs laid by turtles on a naturally hot beach withstand temperatures better than eggs found on cooler beaches just a few kilometers away.Read more
Mangrove forests, which are unique coastal tree and shrub habitats, are also under threat. They could represent an important breeding and nesting site for the species, which was thought to depend on coral reefs.Read more
This behavior seems to imply a map sense from which the creatures read either absolute or relative location from at least two coordinates.
Direction is one thing but how about position?,
The results demonstrate for the first time that longitude can be encoded into the magnetic positioning system of a migratory animal.
"With warmer temperatures and changing climatic conditions increasing the pressure on water availability, ecological communities such as this must be protected," Mr Garrett said.Read more