Reproductive patterns
Viviparous
How are they born?
Mothers give birth when they are fully grown
How do embryos feed?
Nourished through the placenta
How is fertilization?
Internal
Examples
Cats, dogs, humans...
Oviviparous
How are they born?
The eggs remain inside the mother until they hatch
How do embryos feed?
Feed on the nutritional material of the eggs
How is fertilization?
Internal
Examples
Seahorses, snakes...
Oviparous
How are they born?
Hatch from eggs
How do embryos feed?
Feed on the nutritional material of the eggs
How is fertilization?
Internal or external
Examples
Crocodiles, chickens, insects...