An average-sized blue whale will eat 2,000-9,000 pounds (900-4100 kg) of plankton each day during the summer feeding season in cold, arctic waters ( about 120 days).

Food Preferences and Resources Right whales eat zooplankton (animal plankton). Their finely fringed baleen is able to strain from the water copepods (a type of small crustacean) and other small zooplankton. Krill (a family of small, shrimplike crustaceans) and copepods are major components of a right whale’s diet.

Gray whales eat very little while on migration. Still, they may find and eat schooling squid, krill, crab larvae, herring eggs, ghost shrimp, and small bait fish such as capelin. This jar of whale food shows how TINY it is! An adult gray whale in the summer feeding grounds eats approximately 2,400 pounds of food a day.

Because of their size, power and speed, adult blue whales have virtually no natural ocean predators. The only sea creature known to attack blue whales is the orca whale (scientific name: Orcinus orca) also known as the “killer whale”. They have been known to work in groups to attack blue whales.

80 – 90 yearsIn the wild, Estimated

Carnivorous

A blue whale’s heart is the biggest on the planet, weighing 400 pounds. That’s the weight of about 35 gallon paint cans. A blue whale’s heart is only 1% of its body weight – however the whale’s immense weight is supported by water. When the whale came to the surface to breathe, its heart raced to 25-37 beats a minute.

220 litres

“This blue whale had heart rates ranging from 2 bpm to 37 bpm, which is more than an order of magnitude difference — 10-fold,” Goldbogen tells Claire Cameron at Inverse. “In comparison, human heart rates might typically range from 60 bpm to 200 bpm, which is a much lower range, just over a 3-fold difference.”

blue whale’s

Pig milk is not considered suitable for human consumption or commercial production for a number of reasons. Pigs are considered difficult to milk. The sow herself is reluctant to be milked, may be uncooperative or become spooked by human presence, and lactating pigs may be quite aggressive.