New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be the ...

Some baleen whales avoid killer whale attacks by singing songs at deep frequencies that their predators cannot hear.

Killer whales are the only natural predator of baleen whales — those that have "baleen" in their mouths to sieve their plankton diet from the water ...

Avoiding predators is one of the most important jobs for many members of the animal world. Even ocean giants like baleen whales have something to fear from killer whales, their only known natural ...

And while people can argue endlessly about the cost and benefits of electric cars, nuclear reactors and windmills, surely most of us can agree that majestic forests of pine, maple, beech and spruce ...

Groups are working to shut down a local fishery they say has potential to endanger not just the herring it fishes, but the ...

Orcas, or killer whales, are deadly and beautiful apex predators.

A trip to a local pond brings a whole new respect knowing the beaked inhabitants evolved when T-Rexes were still around.