A female humpback from a breeding ground in Brazil was recently discovered in a breeding ground off the east coast of Madagascar.
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Whales fertilize the ocean with their feces, which contain nutrients they carry from deep waters up to the surface.
Researchers can collect genetic samples from dolphins by capturing their exhaled breathe, rather than shooting them with darts, according to new research.
Humpback whales were previously believed to be less social than other whales, but a new study found that they actually form friendships that last for years.
Genetics suggests groups of killer whales that have their own personalities and physical features are really separate species.
The ancestors of blue whales may have filtered food from the mud, suggesting the origin of filter-feeding.