Animals do not heart, do not brain swim wonders

Jellyfish have no bones, no brains or hearts, but they possess great swimming skills, according to a new study.

A new research report published in the journal Current Biology reveals that jellyfish can detect the direction of ocean currents and swim strongly to fight them. This study has provided further evidence that non-brain organisms, such as carnivorous plants, can still be very intelligent.

"The detection of ocean currents without fixed visual reference points, is thought to be almost impossible and does not exist in many migratory vertebrate species, including birds and turtles. Jellyfish not passive floating gelatin bags in the oceans, but swimmers with good orientation , ' said researcher Graeme Hays from Deakin University (Australia).

Mr. Hays and his colleague, Sabrina Fossette from Swansea Laboratory on animal movement, drew the conclusion after using GPS navigation devices to track the movement of the jellyfish. They also placed lifesaving buoys by GPS to record the activity of ocean currents.

The data revealed, the jellyfish occasionally swim actively against the flow so as not to be swept away. In other words, they seem to control their destination, as opposed to passive floating around their natural habitat in the ocean.

Jellyfish can be offensive creatures, because they sometimes appear massively on ocean surfaces. New research has helped explain why, hundreds to millions of individuals without this brain can swim to the same number of locations and stay there for several months.

Two experts Fossette and Hays identified, jellyfish can detect the movement of ocean currents across the surface of the body or they can discover the magnetic field of the Earth or sub-human sounds can be heard. can see.

Knowing where jellyfish are and where they will go is very useful information for people and other animals. Jellyfish act as an important food source for many other animals, such as sea turtles. However, they are annoying creatures for fishermen and swimmers, because they can block the fishing net and sting the body.