Sunspots 889

Things I have recently spotted that may be of interest to others*:

Politics: The Conversation writes that school hardening isn't very effective.

Science: CNN reports on a male mastodon, who was killed by another one, and also reports that study of the killed mastodon has enabled scientists to study migration patterns in these extinct animals.

The Scientist reports that scientists have been able to find Arthropod (insects, spiders, etc.) DNA in tea bags. Much of this probably was left on the tea leaves when insects bit into the leaves.

Nature discusses the Long-Term Evolution Experiment, which has tracked about 40,000 generations of bacteria (so far), and has found some interesting things, most prominently that mutation has led to a new ability to get energy from citrate.

Gizmodo reports that isolated populations of polar bears have been identified in Greenland.

*I try not to include items that require a password or fee to view.

Thanks for reading.