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A 50-second video of snails (most likely Natica chemnitzi and Cerithium stercusmuscaram) feeding on the sea floor in the Gulf of California, Puerto Peñasco, Mexico. A hermit crab occupying a shell of Acanthina punctulata has been disturbed, and has retracted into the shell, using its claws to bar the entrance in the same way the snail used its ...
Naticidae, common name moon snails or necklace shells, is a family of medium to large-sized predatory sea snails, marine gastropod molluscs in the clade Littorinimorpha. The shells of the species in this family are mostly globular in shape.
As the veligers mature, they develop their first shell (the smooth protoconch) and turn into very small juvenile snails, at which point they sink to the ocean floor. As is the case in all shelled mollusks, the mantle is what secretes the shell; shell growth begins at what will later become the apex of the shell, and typically rotates clockwise.
Conus ventricosus mediterraneus is a subspecies of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies. [1] Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all.
A group of shells belonging to various species of cone snails. Cone snails, or cones, are highly venomous sea snails of the family Conidae. [1] Fossils of cone snails have been found from the Eocene to the Holocene epochs. [2] Cone snail species have shells that are roughly conical in shape. Many species have colorful patterning on the shell ...
There are approximately 30 records of humans killed by cone snails. Human victims suffer little pain, because the venom contains an analgesic component. Some species reportedly can kill a human in under five minutes, thus the name "cigarette snail" as supposedly one only has time to smoke a cigarette before dying.
“The most dreaded bit of ocean on the globe – and rightly so,” Alfred Lansing wrote of explorer Ernest Shackleton’s 1916 voyage across it in a small lifeboat. It is, of course, the Drake ...
From shallow waters to the deep sea, the open ocean to rivers and lakes, numerous terrestrial and marine species depend on the surface ecosystem and the organisms found there. [1] The ocean's surface acts like a skin between the atmosphere above and the water below, and hosts an ecosystem unique to this environment.