image courtesy - national geographic.org
Each spring, the grey whales of North America's Pacific coast set out on a 20,400 km (12,600 mile) round trip. They leave their breeding sites in the sheltered lagoons of Baja California and travel to their feeding grounds in the Arctic. The procession is led by the newly pregnant mothers eager to maximize feeding time to nourish their developing offspring. The adult males and nonbreeding females are not far behind, followed by the immature whales and, lastly, mothers and calves. They take the inshore route, skimming the kelp beds where they can hide from pods of marauding killer whales which prey on their young. They swim at about 8 km/h (5 mph), but they can take off at 20 km/h (12 mph) when pursued. The whales surface every 34 minutes and blow a short twin-blast of vapour before lifting their tails and diving below. If you liked this post,please Comment in the COMMENT BOX below and don't forget to hit the link below and like our facebook page -
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