Distribution and Migration.
Gray whales don’t strike you with their beauty. The Mysticeti whales have baleen instead of teeth. The gray whale was once also found in the North Atlantic Ocean.
The gray whale has two blowholes, and between 9 and 14 dorsal nodules on its back, instead of a back fin. At full size the gray whale is about 35 to 50 feet in length and weighs 20-40 tons. Their whole body is often laced with more than 100 kilos of scars, clams, whale lice and barnacles, which kind of makes them look as if they fell into the water from the ugly tree.Nonetheless, together with humpbacks, they are the most popular and most watched whales. Gray whales are known for their curiosity toward boats and are the focus of whale watching and ecotourism along the west coast of North America. Gray whales make one of the longest annual migrations of any mammal, traveling about 10,000 miles round-trip. This round trip of 10,000 –13,600 miles is believed to be the longest annual migration of any mammal. The gray whale makes one of the longest of all mammalian migrations, averaging 10,000-14,000 miles (16,000-22,530 km) round trip. The reasons are simple: They can be very playful and curious, and … Other Grey Whale Sightings. The largest grey whales have flukes, or tails, that may span ten feet. The migration trip takes an average of 2 -3 months to complete and is considered to be one of the longest migrations trip of any animal lasting 9,000 – 16,000 miles., although it seems that on average their migration trips are closer to 8,000 – 10,000 miles. California gray whales (Eschrichtius robustus) are famous for their extraordinary 9,000 to 12,000 mile (15,000 to 20,000 km) round trip migration along the west coast of North America. During migration trips as many as 20,000 gray whales can be seen swimming in the ocean. The Migration route of the Pacific Gray Whale is often described as the longest known mammal migration in the animal kingdom. Beginning in the Bearing and Chukchi Sea and ending in the warm water lagoons of Mexico’s Baja peninsula, their round trip journey moves them through 12,500 miles of coastline. Thus, they face threats from vessel strikes and disturbance on their migration route. Traveling night and day the gray whale averages approximately 75 miles per day at an average speed of 5 mph. The small zooplanktonic crustaceans that make up the majority of the gray whale's diet are called amphipods but the gray whale has been known to consume other crustaceans like shrimp, mysids, and krill. Gray whales inhabit shallow coastal waters of the eastern North Pacific. The gray whales will pass again in late March, as they head north to feeding grounds off the shore of Alaska. This is longest known migration of any mammal. The male gray whale can reach 45 feet, while the female can reach 50 feet and weigh 30 or 35 tons.
It needs 65 tons of food annually to be healthy and migrate. Between 2011 and 2012 a gray whale was tracked by satellite making a round trip of 14,000 miles (22,500km) between the east coast of Russia and the coast of Mexico.
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