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Tag: "urchin" at biology news

Gifts from the sea

...tand diseases that can cause blindness. Green sea urchin (Strongylocentrotus droebachiensis): The female sea urchin can produce as many as a half million eggs during spawning season, and fertilization and embryonic d...

Creeping crinoids! Sea lilies crawl to escape predators, new video shows

...sea lily just leaves the stalk end behind. The sea urchin is preoccupied going after that, and the sea lily crawls away." And the speed at which they move---three to four centimeters per second---suggests that "in a race with a sea urchin, the sea lily would probably win." Now Baumiller is studying fossil ...

U. of Colorado researcher identifies tracks of swimming dinosaur in Wyoming

...sea lily just leaves the stalk end behind. The sea urchin is preoccupied going after that, and the sea lily crawls away." And the speed at which they move---three to four centimeters per second---suggests that "in a race with a sea urchin, the sea lily would probably win." Now Baumiller is studying fossil ...

Embryos tell story of Earth's earliest animals

... likely to affect fossilization. They used two sea urchin species as models, Heliocidaris erythrogramma and ... does not influence the fossilization process. Sea urchin species whose animal embryos are small (a tenth of a millimeter) were just as likely to be fossilize...

Sea urchin genome suprisingly similar to man and may hold key to cures

...up, which recently completed sequencing of the sea urchin genome and published its findings in the November ...ine-month project. The genome of the purple sea urchin is composed by 814 "letters" coding for 23,300 genes. Sea urchins are echinoderms, marine animals...

Biologists prove critical step in membrane fusion

...el lab are experts in fertilization; they used sea urchin eggs to study membrane fusion. In urchin eggs, thousands of membrane-bound vesicles are attached to the plasma membrane. Within seconds after...

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