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Tag: "slugs" at biology news

In the sea slug's defense against lobsters, confusion is key

...e. When attacked by predatory spiny lobsters, sea slugs (also known as sea hares) release an inky secretion, termed ink and opaline, from a pair of glands. The new findings show that Aplysia's defensive secretion includes a variety of chemicals that together comprise a multi-pronged attack on the predator...

Sperm trading can resolve hermaphrodite mating conflicts

..." copulation--that is, without sperm transfer. Sea slugs that mated with such a "cheating" partner interrupted sexual intercourse significantly sooner than did control pairs. This supports the concept of sperm trading, where mates negotiate mating roles in order to balance sexual interactions. ...

Sea slug mixes chemical defense before firing at predators

When threatened by predators, sea slugs defend themselves by ejecting a potent inky secret...examined the ink and opaline glands of Aplysia sea slugs for the chemicals L-lysine, L-arginine and an enzyme protein called escapin. In previous research, D...

When the going gets tough, slime molds start synthesizing

...warm spot. There, in response to the DIF-1 signal, slugs literally stand up and their cells metamorphose into either a column of stalk cells or next-generation spore cells, which perch atop the column waiting for food supplies to be restored. Noel and Michael Austin, Ph.D., a postdoctoral fellow in Noel'...

The secret lives of sea slugs

...to science, but also because they suggest that sea slugs don't just inch randomly around the sea. In fact...orrelated with earlier studies suggesting that sea slugs flatten out their bodies to reduce drag when they encounter strong water currents, a behavior that h...

Mutation improves memory, may lead to memory-enhancing pill

...t molecular machineries, widely conserved from sea slugs to rodents, are thought to underlie these two components. While modifications of pre-existing proteins are sufficient for the transient changes, new gene expression is required for those that are sustained," the researchers said, emphasizing that a g...

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