The snail or the egg? How marine snails switched from laying eggs to giving birth Date: January 4, 2024 Source: Institute of Science and Technology Austria Summary: Animals reproduce in one of two ...

Animals reproduce in one of two distinct ways: egg-laying or live birth. By studying an evolutionarily recent transition from egg-laying to live-bearing in a marine snail, collaborative research ...

ANN ARBOR, Mich.---It's "Waterworld" snail style: Ocean-dwelling snails that spend most of their lives floating upside down, attached to rafts of mucus bubbles. Scientists have known about the ...

That shell, the “protoconch,” evolves over time along with the snail, who’ll return to the sea to hunt for food. Yes, Adelomelon is indeed carnivorous, and may even eat other ocean snails.

More information: Sean Stankowski et al, The genetic basis of a recent transition to live-bearing in marine snails, Science (2024).

The snails, which measure about 0.03 to 0.5 inches (0.9 to 13.1 millimeters) in length, each travel between 162 and 984 feet (50 to 300 meters) per day, swimming skyward to feed at the surface at ...

An inordinate amount of ocean snail eggs have washed ashore in Buenos Aires, and marine biologists aren't exactly sure why. The post An Argentina Beach Is Covered in Thousands of Snail Eggs ...