Females sleep less, awaken more frequently than males
Females sleep less, wake up more often and get less restorative sleep than males, according to a new animal study by CU Boulder researchers. The findings, published in the journal…
Otters, especially females, use tools to survive a changing world
Sea otters are one of the few animals that use tools to access their food, and a new study has found that individual sea otters that use tools — most…