Dolphins and porpoises are actually whales. But whales are whales too. And so are narwhals. Sorry for springing that on you ...

Both are known to swim near the ocean surface with their dorsal fin visible, but there are some key differences ... if it is a shark or another finned friend like a dolphin or porpoise," Haulsee ...

In the article that follows, Stefan relates his organization’s most recent efforts to expose and stop an ongoing practice in which dolphins are callously butchered not only for human consumption, but ...

A shark only just formally discovered might already be extinct - a fate no shark has yet suffered in the human era - while an Amazon river dolphin has become endangered, a Red List of species in ...