Where To Stream The Life of Mammals Season 1 Episode 7

From the roughest seas to the crystal clear waters of the Florida springs, David Attenborough swims with sea otters and dives with manatees, as he follows those mammals who, millions of years ago, left dry land and returned to the water to feed. Attenborough races across the Pacific Ocean to find the largest mammal that has ever lived on this planet, the blue whale, a hundred feet long. As David says, 'nothing like that can grow on land because no bone is strong enough to support such bulk....