Canadian researchers have discovered high levels of a dangerous chemical, used in the manufacture of toilet paper, in the bodies of endangered orca whales, raising fears that the toxic substance may increase the harm to them, according to a Sky News Arabia report.
The researchers announced that they had discovered the chemical nonylphenol in the bodies of 12 whales they studied. It is often used in paper processing and is also found in soaps and detergents, and can enter the ocean from waste treatment plants.
Due to the size of orcas, they often swallow small bodies contaminated with chemicals, making them among the most polluted whales in the world.
Orcas live in all oceans in general, but prefer to live in cold coastal areas such as Alaska.
And the orca monitors its prey by sound, that is, it knows the size of the prey and the things around it by the frequency of the sound, which is emitted through the air passing between its mouth and the nozzle above the head.
It is worth noting that the “orca” whale is described as a killer whale or a killer whale, and it is a whale of the dolphin family. Rather, it is the largest of them in size, and it lives in the seas and oceans.
And the “orca”, the average length of the females is about 8.5 meters and their weight is about 7.5 tons, while the males are about 9.8 meters long and their weight is about 10 tons.
It is characterized by a triangular and pointed dorsal fin in the middle of its back, with a length of 2 meters, and it has a huge and round head, while its females are slightly curved, and they have a jaw consisting of 10 to 14 pairs of sharp and wide teeth.