Human embryos briefly exhibit traits like tails and gill-like structures, revealing our evolutionary history and deep ...

Over the past 60 years, scientists have had success preserving the sex cells and embryos of humans, cattle, mice, and many other animals. Trying to freeze and thaw fish embryos, however, has been more ...

The ability of our skeletons to move with both flexibility and stability can be traced back to ancient jawed fish. Scientists ...

Jawed vertebrates known as gnathostomes appear to be the first creatures with the synovial joints, according to Shubin. These joint cavities can be seen in cartilaginous fish such as skates or sharks.

The same joint architecture and developmental process found in human joints is present in sharks and skates, showing this biological design has remained largely unchanged for hundreds of millions of ...

Can a single protein-encoding gene determine whether a vertebrate embryo develops normally? Yes, according to Osaka Metropolitan University researchers, who found that suppression of Pcdh8 is ...

After the invention of whole-genome sequencing, we now know the sequences that make up an entire organism. Now what do they mean? To answer that, we turn back to linkage mapping in model organisms.

Ancient fish had synovial joints, challenging the idea that flexible skeletons evolved on land. Fossils and modern fish show ...

The Arctic is changing, and scientists and residents alike are interested to understand both the reasons for and impacts of these changes, including how it’s affecting fish populations that Alaskans ...

One of the fish’s advantages is clear—literally. Because embryos are transparent and develop outside the mother’s body, scientists can manipulate genes to model human diseases and directly ...

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