they lay eggs
A monotreme is a type of mammal that lays eggs instead of giving birth to live young. The platypus and echidna are the only existing monotreme species. They are unique in the animal kingdom for their combination of reptilian and mammalian characteristics.
mammalAnimals that don't lay eggs are called Mammals, as they give live birth and have hairs. But, as Mother Nature can be contrary, the echidna and the platypus, though mammals, lay eggs!
Fish typically lay the most eggs compared to frogs and spiders. Some fish species can lay thousands to millions of eggs at once, while frogs and spiders typically lay smaller clutches of eggs.
The four traits used to determine which kingdom an animal belongs to are cell type (prokaryotic or eukaryotic), cell number (unicellular or multicellular), how they obtain energy (autotroph or heterotroph), and the way they reproduce (asexual or sexual).
not many do
the ostritch lays the biggest eggs today, but if dinosaurs were still alive they would lay the bigest eggs.
larva is the animal that lays pea sized eggs in your garden really its obvious
platupus
trout
Snakes.
An animal that lays eggs is oviparous.
The echidna is an animal which lays eggs. The echidna is covered in spines. Like platypuses, echidnas are monotremes, or egg-laying mammals.
non-mammal
A platypus.
fish
Oviparous means that the animal lays eggs. Most fish lay eggs.