oviparous
Hatching from shells
Oviparous describes animals that reproduce by laying eggs that develop and hatch outside the mother's body.
Birds, most reptiles, fish, and insects are oviparous.
The term contrasts with viviparous (giving birth to live young) and ovoviviparous (eggs hatch inside the mother): Chickens are oviparous; humans are viviparous.
Development before emergence
- yolkEgg's nutrient core
- embryoOrganism before birth
- albumenClear protein in eggs
- amnioticOf the embryo's sac
chorion · zygote · fertilization · oviduct · eggshell · shell · calcareous · pipping
Animal-built shelter for young
- broodingAnxiously dwelling on something
- clutchMechanism linking engine to gearbox
- layingPutting down horizontally
- nestingMaking a dwelling
incubator · temperature · humidity · brood · maternal · territorial · rookery · colony
Cold-blooded scaly vertebrates
- birdsEgg-laying flying vertebrates
- amphibiansVertebrates with aquatic larvae
- fishGilled aquatic vertebrate
- monotremesEgg-producing mammal order
platypus · echidna · invertebrates · insects · arachnids · vertebrates · cold-blooded · dinosaurs
incubation
Development before emergence
amniotic · chorion · zygote · fertilization · oviduct · eggshell · shell · calcareous · pipping · hatching
nest
Animal-built shelter for young
- broodingAnxiously dwelling on something
- clutchMechanism linking engine to gearbox
- layingPutting down horizontally
nesting · incubator · temperature · humidity · brood · maternal · territorial · rookery · colony · burrow
reptiles
Cold-blooded scaly vertebrates
- birdsEgg-laying flying vertebrates
- amphibiansVertebrates with aquatic larvae
- fishGilled aquatic vertebrate
monotremes · platypus · echidna · invertebrates · insects · arachnids · vertebrates · cold-blooded · dinosaurs · crocodilians
chick
Young bird, especially poultry
duckling · poult · tadpole · larva · hatchling · juvenile · downy · imprinting · chirping · fingerling