They undergo explosive population growths and produce extremely dense concentrations in the ocean called blooms, he said.
"One day's sail from Thule is the frozen ocean, called by some the Cronian Sea."
The deposits of glacial tillite also occur in places that were at low latitudes during the Cryogenian, a phenomenon which led to the hypothesis of deeply frozen planetary oceans called "Snowball Earth".
Recently, the channel agreed to co-produce an eight-part series on the world's oceans, called "Blue Revolution," with companies in Britain, Australia and Japan.
The world at the time was dominated by a single supercontinent known as Pangaea, surrounded by a global ocean called Panthalassa.
Though its elegance is gone, a mall-like food-and-shopping complex by the ocean called Pier Village packs 'em in for everything from Greek dinners to swimwear shopping.
Beyond the glass, just 20 feet from the room, shimmered the surface of the ocean rightly called Pacific.
At the southern end of the beach is a large rock that projects into the ocean, called Flat Rock.
In the majority of versions, before the earth existed, a boundless ocean called Apa Sâmbetei was the abode of God and the Devil, seen as master and servant rather than equals.
But the heart of Pacifica had always been and remained today the tropical islands of the ocean called Pacific in memory of the largest sea on Earth.