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Monotremes lay eggs. However, the egg is retained for some time within the mother, which actively provides the egg with nutrients, and generally hatches soon after birth, within the span of 10 days.
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∙ 7y ago
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∙ 13y agodinosaur eggs are many times bigger than a human. However, there is a restriction to the maximum size of the egg an animal can lay. As the animal gets bigger, the egg becomes thicker. If an eggshell is too thick. the baby cannot hatch out of its shell.
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∙ 10y agoThere are only three species of monotremes, or mammals that lay eggs; the platypus, the short-beaked echidna and the long-beaked echidna. The echidna's egg is larger. It tends to measure 13-15 mm in length, compared to the platypus's egg which averages a mere 11 mm in length.
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∙ 12y agoThe largest dinosaur egg was 25.5 centimeters.
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∙ 12y agoAn echidna's eggs average 13mm to 15mm in diameter. This is about the size of a grape.
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∙ 13y agoLike about 1,003,039,999,009 KM
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Which type of echidna lays eggs?
There are just two species of echidna and they both lay eggs. They are the short-beaked echidna and the long-beaked echidna. Echidnas are monotremes, or egg-laying mammals.
Do mammals eggs?
'Monotremes' lay eggs, - they are the 'platypus' and the 'echidna'.
Are mammals born in eggs?
Most mammals are not hatched from eggs. Only the monotremes, or egg-laying mammals, reproduce by external eggs. Monotremes include just the platypus, the long-beaked echidna and the short-beaked echidna.
How big are the spiny anteater's eggs?
The spiny anteater, more correctly known as the echidna, lays small, leathery eggs which are about the size of a grape. They average 13mm to 15 mm in diameter.
What animal with spines lays eggs?
The echidna is an animal which lays eggs. The echidna is covered in spines. Like platypuses, echidnas are monotremes, or egg-laying mammals.
Do Echidna lay eggs?
Yes. Like the platypus, the echidna is a monotreme, or egg-laying mammal. Monotremes are the only known mammals that reproduce by laying eggs.
Which two mammals reproduce by laying eggs?
The only mammals that reproduce by laying eggs are the monotremes, and these include just the echidna and the platypus. The platypus and the short-beaked echidna are native to Australia. There are two species of echidna: the long-beaked echidna and the short beaked echidna, both of which are found in New Guinea.
Do mammals hatch from eggs?
Most mammals do not hatch from eggs. However, there is a small group of egg-laying mammals which are known as monotremes. There are just three known species of monotremes: the platypus; the short-beaked echidna; and the long-beaked echidna.
Do mammals produce eggs?
Only two mammals produce eggs, the echidna and the platypus.
What monotreme lays eggs?
All monotremes lay eggs. Monotremes are mammals that lay eggs. There are just two known monotremes, the platypus and the echidna, although there are two species of echidna.Platypus - indigenous to Australia aloneShort-beaked echidna, sometimes known as the spiny anteater - found in Australia and a small region in New Guinea.Long-beaked echidna - found in the New Guinea highlandsThere are three sub-species of the long-beaked echidna: the Western long-beaked echidna, Sir David's long-beaked echidna and the Eastern long-beaked echidna.
What mammal lays eggs and have dry scales?
No mammal lays eggs and has dry scales. The only mammals which lay eggs are monotremes, which include the platypus and the echidna, both of which have fur (while the echidna also has spines).
Name one mammal which lays eggs?
Egg laying mammals are the mammals classified as monotremes. These include the Platypus and various species of Echidna.
