The blue whale the largest creature known to man

Sauropods Sauropoda The largest dinosaurs, and the largest animals to ever live on land, were the plant-eating, long-necked Sauropoda. Two other such sauropods include Bruhathkayosaurus and Amphicoelias fragillimus. Both are known only from fragments.

The blue whale the largest creature known to man

The blue whale lineage diverged from the other rorquals during the Miocene, between 7.

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However, gene flow between the species appears to have continued beyond that date. The blue whale has the greatest genetic diversity of any baleen whale, and a higher than average diversity among mammals.

Arnason and Gullberg describe the genetic distance between a blue and a fin as about the same as that between a human and a gorilla. These names have now fallen into disuse. Sars adopted it as the Norwegian common name in This is likely because blue whales were driven north by expanding ice, and some have stayed there ever since.

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Between 70 and grooves called ventral pleats run along the throat parallel to the body length. These pleats assist with evacuating water from the mouth after lunge feeding see feeding below.

Located around three-quarters of the way along the length of the body, it varies in shape from one individual to another; some only have a barely perceptible lump, but others may have prominent and falcate sickle-shaped dorsals.

When surfacing to breathe, the blue whale raises its shoulder and blowhole out of the water to a greater extent than other large whales, such as the fin or sei whales. Observers can use this trait to differentiate between species at sea.

Some blue whales in the North Atlantic and North Pacific raise their tail fluke when diving. Blue whales have twin blowholes shielded by a large splashguard.

The blue whale the largest creature known to man

The upper sides are grey with a thin white border; the lower sides are white. The head and tail fluke are generally uniformly grey. The degree of mottling varies substantially from individual to individual. Some may have a uniform slate-grey color, but others demonstrate a considerable variation of dark blues, greys and blacks, all tightly mottled.

Blue whales typically swim at a depth of about 13 meters 43 feet when migrating in order to eliminate drag from surface waves. The deepest confirmed dive is meters 1, feet. It is not known how long traveling pairs stay together.

In locations where there is a high concentration of food, as many as 50 blue whales have been seen scattered over a small area. They do not form the large, close-knit groups seen in other baleen species.

How Big Is the Biggest Whale? | Wonderopolis

Size View of a blue whale and its bow wave, showing the blowhole The blow of a blue whale The small dorsal fin of this blue whale is just visible on the far left. The blue whale is the largest animal known to have ever lived.

They were never weighed whole, but cut into blocks 0. Adult weights typically range from 45— tonnes 50— short tons. The standard measuring technique is to measure in a straight line from the upper jaw to the notch in the tail flukes. This came about because the edges of the tail flukes were typically cut off, and the lower jaw often falls open upon death.

However, males may be slightly heavier on average than females of the same length, owing to heavier muscles and bones. The longest measured by Macintosh and Wheeler was a female Walsh, USCGwhile acting as whaling inspector of the factory ship Ulysses, verified the measurement of a The largest creature ever to live, the blue whale averages 25 feet ( meters) long at birth and weighs about three tons.

As an adult, it can . An Analysis of the Blue Whale, the Largest Sea Creature Known to Man PAGES 3. WORDS 1, View Full Essay. More essays like this: the largest sea creature, the blue whale, balsenoptera musculus.

Not sure what I'd do without @Kibin - Alfredo Alvarez, student @ Miami University. The largest known concentration, consisting of about 2, individuals, is the northeast Pacific population of the northern blue whale (B.

m. musculus) subspecies that ranges from Alaska to Costa Rica, but is most commonly seen from California in Balaenopteridae. An adult blue whale can eat more than 4 tons ( metric tons) of krill, a tiny shrimp-like creature, every day. This puts blue whales well above any known land mammal in terms of size.

Most people believe that the largest animals to ever exist on Earth were the dinosaurs. The second-largest sea creature -- and second-largest creature on Earth -- is the fin whale.

Fin whales are a very slender, graceful whale species. Fin whales can reach lengths up to . Aug 16,  · Blue whale is the largest creature of the sea. In fact, it is the largest creature known to man. Contrary to what most people think, even though Blue whales live in the sea, they are mammals.

11 facts about blue whales, the largest animals ever known to live on Earth | TreeHugger