House lizards, common in Indian homes, can spread salmonella. Understanding their egg-laying habits is key to control.
Our earliest vertebrate (animals with backbones) ancestors laid eggs, but over millions of years of evolution, some species began to give birth to live young. There is a traditional dichotomy in ...
For most of the animal kingdom, babies are born in one of two ways: their parent either lays eggs or gives birth to live offspring. Recently, a three-toed skink (Saiphos equalis) pulled off an ...
New findings add a surprising twist to the already complex mechanism that determines whether reptile embryos develop to be males or females. An egg-laying lizard found in the hills of southeastern ...
Q. When we studied high school biology, our teacher said more than 99 percent of animals lay eggs and only a few give live birth. That percentage seems too high. Humans, dogs, cats and cows are ...
Q. I am doing a project on different types of eggs in the animal kingdom. Can you tell me the approximate percentage of animals that lay eggs? I know mammals do not and birds do. What about other ...