The animal that lays the largest egg is the whale shark. However, a whale shark keeps the egg inside its body until the baby is born. Ostriches lay the biggest eggs found on land. More »

Animals that lay eggs are known as oviparous animals and include fish, birds, reptiles and insects. These types of animals have little to no other development within the mother. Mammals that lay eggs instead of giving bi... More »

Birds lay eggs, although there are other egg-laying animals, including two mammals: the duckbill platypus and the echidna. These two creatures are natives of Australia. Scientists call these primitive egg-laying mammals ... More »

The common tenrec — a hedgehog-like creature from Madagascar — produces the largest litters among mammals. The average litter of this small animal includes approximately 18 young, but litters up to 32 have been recorded.... More »

The primary means of fish reproduction are egg laying and live bearing. Egg-laying fish release eggs that are later fertilized. Live-bearing fish internally fertilize the female, who carries the offspring within until th... More »

Killer whales, like all other mammals, reproduce through sexual reproduction, which requires the union of a male killer whale's sperm with a female killer whale's egg. Once conception occurs, the fertilized egg develops ... More »

According to "Backyard Poultry Magazine," factors that cause chickens to eat their own eggs are overcrowding, excessively bright coop lighting, inadequate nests and the presence of juvenile chickens in the egg house. Oth... More »