Here on land, we undertake great engineering proje...  ...ge animals produce a lot of it? It turns out that whales have the ability to offset greenhouse gasses with...  ...offset greenhouse gasses with their poop! Sperm whales in the Southern Ocean release 220,462 tons of car...  ...nimals on the planet. "If...

How did whales manage to grow so big? And is there a limit to ho...  ...an get? Scientists looked at the mechanics of how whales feed, especially those species that consume tiny...  .... This type of feeding might explain the size of whales . If the scientists are right, they...