seaweed

To evaluate the effect of seaweed, researchers built controlled crawlways on the sand that simulated each hatchling's natural route.

Some strategies use biological processes, such as increasing plankton or seaweed growth so they can take up carbon dioxide as they develop.

Maloney provided exceptionally well-preserved seaweed fossils that are roughly one billion years old, collected from Yukon Territory, Canada.

Among them is avoiding seaweed soup for lunch, as its slippery strands are believed to make students "slip" in the high-stakes test -- a superstition that has long shaped test-day menus.

She said separating ones caught up on in seaweed or other debris would need to be done by hand.