NOAA designates new national marine sanctuary in Wisconsin’s Lake Michigan

An exciting recreational opportunity: a diver swims over the two-masted schooner, Walter B. Allen, which sank in 1880. (Tamara Thomsen, Wisconsin Historical Society)

“Preserving this region furthers the Biden-Harris Administration’s vision of locally-led, collaborative conservation,” said Secretary of Commerce Gina M. Raimondo. “This designation is also an exciting opportunity for the public to celebrate and help protect this piece of our nation’s rich maritime history.”

Narwhal being tagged.
Narwhal being tagged.

Artificial intelligence shines light on narwhal's hunting behavior

Narwhals, notwithstanding their unicorn-like tusks, are a mysterious species. They live in distant Arctic regions and hunt as deep as 1,000 meters down. 

They orient themselves using echolocation, making clicking sounds to explore their surroundings. When they hunt, the clicking sounds turn into buzzing sounds as the interval times shorten.