Why we need cetaceans in our oceans

A recent study in the Southern Ocean by scientists has revealed that Sperm Whales pooh helps the oceans to soak up excess carbon. Approx 50 tonnes of iron are released by sperm whales each year, stimulating the growth of microscopic plankton, which absorb CO2 through photosynthesis.

According to the study the process results in approx 400,000 tonnes of carbon being absorbed, which is more than twice the amount released by the whales when they exhale.

Pretty interesting stuff, the increase in plankton also produces more food sources for cetacean species and pelagic fish species. The full story is here.