|MadSci Network: Zoology|
Structurally speaking, are monotreme eggs more birdlike or more like reptile eggs? Seeing as mammals evolved from the mammal-like reptiles, I would assume the eggs of monotremes were spherical and leathery, like turtle or alligator eggs, land eggs of a more basic form. But it occured to me they could possibly be more like bird eggs, as monotremes are more advanced than reptiles, as are birds. Monotremes also have birdlike attributes (beaks, so they might also have birdlike eggs. Actually, for all I know, they could be could be far diffent from either bird or reptile.
Re: Are the eggs of monotremes closer to the eggs of birds or reptiles?
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