An elephant’s trunk is incredibly strong and rugged, and yet it is one of the most sensitive touch organs in the animal kingdom. New research reveals that this sensitivity is partly powered by over 1000 whiskers.

PLUS:

• A new 'inside out' solar system is making astronomers question planet formation
• Paleo-Inuit people in the high Arctic were masterful seafarers, new study shows
• Two-month-old babies can categorize objects in their brain
• How insects deal with smog or microplastics can impact them and the environment

Researchers made the surprising discovery that Alaska beluga whales have swinging sex lives — and that could be their key to survival in the warming Arctic.

Plus:

• mission to the 'doomsday' Thwaites glacier in Antarctica ends in disappointment
• near-infrared light therapy offers hope to football players with brain injuries
• with nuclear power making a comeback, what's changed since the last Atomic Age?

Scientists spent nearly 25 years studying close to 800 polar bears in the Barents Sea region and discovered that those polar bears seem to be doing just fine, even though melting sea ice is also a major issue.

PLUS:

• Sargassum seaweed is becoming such a problem, you can see it from space
• Why some people only get mild sniffles with a cold and others get sick
• A woolly rhino's DNA found in an ancient wolf’s stomach reveals their quick demise
• How to change a memory — one scientist's quest to understand memory permanence