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Slow Snails, Fast Genes: Predatory Snails Refine Venoms Through Continuous Gene Duplication

ANN ARBOR, Mich.— When tropical marine cone snails sink their harpoon-like teeth into their prey, they inject paralyzing venoms made from a potent mix of more than 100 different neurotoxins.

Biologists have known for more than a decade that the genes which provide the recipes for cone snail toxins are among the fastest-evolving genes in the animal kingdom, enabling these predatory gastropods to constantly refine their venoms to more precisely target the neuromuscular systems of their prey. (more…)

If It’s Summer, It’s Also Scorpion Season

By Guest PostJuly 11, 2011Healtharizona poison and drug information center, aspirin, keith boesen, maricopa, mazda shirazi, natural defenses, natural fluorescence, nervous system, painkiller, poison specialists, scorpion, scorpion antivenom, scorpion species, scorpion stings, scorpion venom, sting season, summer in southern arizona, symptoms, the university of arizona, tylenol, ultraviolet light

When stung by a scorpion, call 1-800-222-1222 and tell UA poison specialists about your symptoms.

Summer in Southern Arizona brings out the shiny auto sunshades, the supersized water bottles – and the scorpions.

The Arizona Poison and Drug Information Center, located at the University of Arizona College of Pharmacy in Tucson, reminds citizens of the desert that venomous scorpions share our habitat, and that sometimes we come closer to one another than we want. Since Jan. 1, the poison center has recorded more than 1,000 scorpion stings in its service area, which includes all counties in the state except Maricopa. (more…)

Tag Archives: scorpion

Slow Snails, Fast Genes: Predatory Snails Refine Venoms Through Continuous Gene Duplication

If It’s Summer, It’s Also Scorpion Season