Why cats stop eating—it's not just fullness

Imagine a creature nearly twice the size of a modern African elephant, which can weigh up to 6,000 kg. This was Elephas (Paleoxodon) recki, a prehistoric titan that roamed the landscape of what is now Tanzania nearly two million years ago. Now, imagine a group of our ancestors standing over its carcass, then butchering it and eating it.

Warming temperatures from climate change cause tree swallows to nest up to two weeks earlier than they did in the 1970s, but early spring cold snaps can hinder nestlings' growth and survival, according to a new study that incorporates a four-decade Cornell dataset on the birds.

NASA’s Northrop Grumman Commercial Resupply Services 24 mission, or Northrop Grumman CRS-24, will deliver approximately 11,000 pounds of science and supplies to the International Space Station. This mission will be the second flight of the Cygnus XL, the larger, more cargo-capable version of the company’s solar-powered spacecraft.

An understanding of community resilience and risk analysis is vital when it comes to protecting civilians and infrastructure from natural hazards, such as hurricanes or earthquakes. Artificial intelligence is an efficient way to rate a community's resilience and vulnerability. However, factors that affect community resilience—like power grids and communications systems—are ranked independently by current assessment methods based on the assumed impact of each factor.