Early humans in South Africa were quarrying stone as far back as 220,000 years ago

An international research team, including the Leibniz Institute for the Analysis of Biodiversity Change (LIB), has described a new species of spider from the Ecuadorian Amazon: Taczanowskia waska. The species is characterized by an extraordinary form of mimicry: It represents the first documented case in which a spider mimics the appearance of a parasitic fungus. The findings are published in the journal Zootaxa.

Heat can change a honey bee's hormone levels, but only if the bee is alone. New research from MSU entomologist Zachary Huang shows that isolated honey bees experience a rapid hormonal rise when exposed to high temperatures, while bees kept in groups stay stable. The discovery highlights how social conditions and chemical signals shape bees' ability to withstand environmental stress.

Exposure to "forever chemicals," per- and polyfluoroalkyl substances (PFAS), has been linked to serious health issues, like immune system damage, cancers, pregnancy complications and liver damage. A new study, published in Risk Analysis, finds that the websites people are visiting for PFAS information are leaving them without a lot of the guidance they need to protect themselves.