PBS
Pbs Learning Media: What Sounds Do Animals Make?
Although they can't speak, most animals have their own way of communicating. This video segment presents examples of animal communication.
Khan Academy
Khan Academy: Animation: Whale Transformation Mask
These stop-motion films made by our 7-12-year-old animators at the second annual #MetKids Animation Lab, explore the theme 'The Met, Inside Out.'
University of California
Voices in the Sea: Marine Mammals
Listen to the calls of some of the animals that live in the ocean. Get basic stats of the animal as you listen to the sounds they make in the wild.
Science Friday Initiative
Science Friday: Ancient Whale Relative Gave Birth on Land
Fossil remains of an ancient pregnant whale suggest that the animal gave birth on land some 47.5 million years ago. [57 secs]
PBS
Pbs Kids: Dragonfly Tv: Know How? Weigh a Whale
So how do you go about weighing a 50 ton animal? PBS site explores how to weigh this mammoth creature by inviting you to come along with David and Anthony as they try to come up with the best way to do it.