In the fall, they migrate from the summer feeding grounds, heading south along the coast of North America to Mexico, to the calving and nesting waters of the Sea of Cortez, where they seek shelter and the calmer waters of Scammon's Lagoon, at Baja, California. Calves are born in the shallow lagoons and bays from early January to mid February. Then the north bound journey begins in mid February to May, the Eastern North Pacific stock of gray whales can be seen migrating with newborn calves along the west coast of America. The new born calves have a pebbly appearance, like a slate gray 'dill pickle" -- this is an easy visual to identify them. Thanks to the whalewatch industry, that began in the 1970's, this is one of the best documented whale species on earth.

2) Humpback whale migration

During the summer months, humpbacks spend the majority of their...
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