ADVERTISEMENT
Unearthed: World’s Oldest Animal Sperm—And It’s Giant
Unearthed: World’s Oldest Animal Sperm—And It’s Giant
The sperm, belonging to a tiny marine crustacean, dates back nearly 100 million years, making it the most ancient animal sperm found to date.
Unearthed: World’s Oldest Animal Sperm—And It’s Giant
Unearthed: World’s Oldest Animal Sperm—And It’s Giant

The sperm, belonging to a tiny marine crustacean, dates back nearly 100 million years, making it the most ancient animal sperm found to date.

The sperm, belonging to a tiny marine crustacean, dates back nearly 100 million years, making it the most ancient animal sperm found to date.

literature, evolution

RNA might have incorporated inosine, a derivative of adenosine, in place of guanosine
Primordial RNA May Have Contained Inosine
Catherine Offord | Mar 1, 2019 | 2 min read
The discovery that the adenosine derivative aids self-replication adds weight to the theory that life on Earth originated from a mixture of RNA molecules.
archaea fused together with cytoplasmic bridges
Archaea CRISPR Systems Grab DNA Memories During Interspecies Mating
Carolyn Wilke | Mar 1, 2019 | 2 min read
When different archaeal species mate, their CRISPR systems interact in ways that may influence their evolution.
Incomplete Immunity
Jim Daley | Jun 1, 2018 | 2 min read
By combining experimental data with computer models, researchers were able to predict a pathogen’s evolution toward more virulence.
Distantly Related Conifers Share a Surprising Number of Cold-Tolerance Genes
Ben Andrew Henry | Dec 1, 2016 | 2 min read
Spruce and pine and have relied on similar genetic toolkits for climate adaptation despite millions of years of evolution.
Sugar Time
Catherine Offord | Mar 1, 2016 | 2 min read
Metabolic activity, not light, drives the circadian clock in cyanobacteria.
ADVERTISEMENT