The first dinosaur eggshell ever found from the Lance Formation in Niobrara County has paleontologists excited. They believe ...

This is a preview. Log in through your library . Abstract Female Fiordland Crested Penguins (Eudyptes pachyrhynchus) lay a clutch of two eggs, the second being significantly larger than the first. To ...

If fertility had a shape, this would be it. Scientists have figured out the exact shape of part of a protein that sits on the outside of the egg and aids in fertilization. The results, which may ...

A Nature study reveals how hidden DNA repair safeguards protect chromosomes for decades, explaining infertility, miscarriages ...

Paleontologists digging in the Dhar district of Madhya Pradesh in central India have turned up a massive and rare hatching site belonging to a colony of titanosaurs, containing 92 nests and 256 eggs.

A rare dinosaur egg discovered in China has been dated to 86 million years ago, using a technique never before applied to ...

Moreover, they subsequently identified the same structure within the sperm cells of zebrafish and in mouse oocytes and sperm. Their findings were published today in Science. This has implications for ...

This is a preview. Log in through your library . Abstract A method is described for measuring and calculating the preexisting surface in uncleaved Xenopus eggs and the rate of surface growth in ...

Investigators have employed mutant mice to study how the accumulation of genetic errors is managed during egg and sperm formation. Sometimes the best way to understand a biological process is to ...

To enable our fingernails to grow or new skin to form and heal an injury, our cells make copies of themselves — exact duplicates containing the same DNA, the combination of 46 chromosomes that makes ...