We do not know and we cannot tell due to the simple fact that nobody was around at the time of the dinosaurs. It is probably most likely that they laid 2 eggs per mating season.
they can lay up to 50 eggs per year
manatees are mammals.. they do not lay eggs
None if there is no male.
3 eggs
How many eggs amphibians lay in a year varies according to the different species. For example, a frog can lay up to 25,000 egg per year while a salamander may lay about 5,000 eggs per year.
about 10 batches eggs!I Know . it so cool.
30 per year usually :)
The female penguin usually lay one egg per year. Some can lay up to two eggs per year.
Barn swallows lay 3-7 eggs per brood. The have 1 or 2 broods per year.
Mallard ducks will lay and sit on about 8-15 eggs per year If you are collecting the eggs, ducks will lay over 100 eggs each year.
the American Oyster lays an average of 500 million eggs per year.
The average chicken lays 300 eggs per year