are blue whales mammals and do they lay eggs?

Answer 1

No, blue whales are actually very large arthropods and they reproduce by binary fusion.

Answer 2

Of course!! whales are mammals..

The Blue Whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales. At up to 30 metres (98 feet) in length and 177 metric tonnes (196 short tons) or more in weight, it is believed to be the largest animal to have ever lived on Earth.[2]

Blue Whales were abundant in most oceans around the world until the beginning of the twentieth century. For the first 40 years of that century they were hunted by whalers almost to extinction. Hunting of the species was outlawed by the international community in 1966. A 2002 report estimated there were 5,000 to 12,000 Blue Whales worldwide[3] located in at least five groups. More recent research into the Pygmy subspecies suggest this may be an under-estimate.[4] Before whaling the largest population (202,000 to 311,000) was in the Antarctic[5] but now there remain only much smaller (around 2,000) concentrations in each of the North-East Pacific, the Antarctic, and the Indian Ocean. There are two more groups in the North Atlantic and at least two in the Southern Hemisphere.

And since they are mammals, nope, they don't lay eggs.. just like humans.

Answer 3

The Blue Whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales. At up to 30 metres (98 feet) in length and 177 metric tonnes (196 short tons) or more in weight, it is believed to be the largest animal to have ever lived on Earth.[2]

So to answer your 1st question, yes the blue whale is a mammal..

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Mating starts in late autumn, and continues to the end of winter. Little is known about mating behaviour or even breeding grounds. Females typically give birth at the start of the winter once every two to three years after a gestation period of ten to twelve months. The calf weighs about two and a half tonnes and is around 7 m in length. Weaning takes place for about six months, by which time the calf has doubled in length. Sexual maturity is typically reached at eight to ten years by which time males are at least 20 m long (or more in the southern hemisphere). Females are larger still, reaching sexual maturity around 21 m or around the age of five.

The answer to your 2nd question, the blue whale does not lay eggs...

Answer 4

Blue whales are mammals. And they don't lay eggs.

Answer 5

Yes, blue whales are mammals, no they don't lay eggs.

Answer 6

Oh for crying outloud!! Yes all whales are mammals and they lay eggs the way you do.

Answer 7

Yes. No.