The species spends the summer in the Antarctic region, but when temperatures drop there, in the middle of the year, they migrate in search of the warm waters of the Brazilian northeast to reproduce.

They seek Brazil, according to biologists, because they want the calves to learn their first movements in less cold seas. The journey of about 4,000 km can last up to two months.

Moreover, ocean water has become warmer due to the climate crisis, making it more difficult for animals to find places with the ideal temperature, 28°C.