It doesn't match anything that can be seen there today, but it fits perfectly with the ecology if right and grey whales
used to be present."
When Whales Cross the Sea: The Grey Whale
Migration (Extraordinary Migrations)
He's on the trail of a grey whale
mother and her newborn calf as they abandon their summer feeding grounds before heading for the icy seas of the Arctic.
Richard Hammond and Countryfile's Julia Bradbury will be presenting, as camera crews follow the lives of baby elephants in Kenya, black bears in Minnesota, macaque monkeys in Sri Lanka, meerkats in South Africa, grey whales
in the Pacific and the magnificent lions of the Masai Mara.
FACTS The grey whale
can grow to a length of 16 metres (52 ft) and a weight of 40 tons - and it can live for up to 70 years.
feed on the seafloor at depths of up to 50 metres, and rely heavily on the shallow regions in Alaska's Bering Sea for food.
Just two years ago, Megill and crew couldn't eat dinner around the firepit without being interrupted by the sound of 20-ton grey whales
surfacing for air between mouthfuls of zooplankton.
candidate studying grey whales
and the ecosystems that sustain them, and she's about to measure the density of zoo-plantkton that serve as one of the great beasts' primary food sources.
Every year they travel the west coast of the USA harassing and then killing the calves of Grey Whales
1988: Grey whales
trapped under the ice in Alaska became the focus of an international rescue effort.
CONSERVATIONISTS will fight plans to fly grey whales
from California and release them in seas off Scotland.
Friends of the Earth oil campaigner Nick Rau said: ``The Sakhalin Project poses a very real threat to the last remaining Western Pacific grey whales
(8pm) Stephen Fry and Mark Carwardine encounter grey whales
as they continue their search for the blue whale.
Friends of the Earth has alleged that Exxon's activities across the world are threatening endangered species, such as grey whales
off the coast of Siberia.
But in 1994 grey whales
were removed from the Endangered Species List - then in 1997 the tribe were given permission to kill 20 whales until the year 2004.