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An adult wunderpus octopus displays an individually unique pattern of white spots and bands over a rusty brown background. Even though each body pattern is unique to the individual, generally all wunderpus octopuses display a circular pattern of about six white spots at the posterior lip of its mantle, head and neck area. Some of these spots ...
Cephalopod limbs bear numerous suckers along their ventral surface as in octopus, squid and cuttlefish arms and in clusters at the ends of the tentacles (if present), as in squid and cuttlefish. [9] Each sucker is usually circular and bowl-like and has two distinct parts: an outer shallow cavity called an infundibulum and a central hollow ...
The infundibulum provides adhesion while the acetabulum remains free, and muscle contractions allow for attachment and detachment. [34] [35] Each of the eight arms senses and responds to light, allowing the octopus to control the limbs even if its head is obscured. [36] A finned Grimpoteuthis species with its atypical octopus body plan
Holometabolous insects can regenerate appendages as larvae prior to the final molt and metamorphosis. Beetle larvae, for example, can regenerate amputated limbs. Fruit fly larvae do not have limbs but can regenerate their appendage primordia, imaginal discs. [30] In both systems, the regrowth of the new tissue delays pupation. [30] [31]
Growing new limbs from an amputation site is a major bioengineering challenge. For now, only lab frogs and mice get successful regrowth therapy. Researchers are getting better at regenerating lab ...
A white-headed dwarf gecko with tail lost due to autotomy. Autotomy (from the Greek auto-, "self-" and tome, "severing", αὐτοτομία) or 'self-amputation', is the behaviour whereby an animal sheds or discards an appendage, [1] usually as a self-defense mechanism to elude a predator's grasp or to distract the predator and thereby allow escape.
Georges Cuvier's original illustration of an octopus hectocotylus, which he named Hectocotyle octopodis. A hectocotylus (pl.: hectocotyli) is one of the arms of male cephalopods that is specialized to store and transfer spermatophores to the female. [1] Structurally, hectocotyli are muscular hydrostats.
Alligators can regrow their tails, it turns out. Researchers have discovered that these ancient reptiles that date back to dinosaur days and can grow 14 feet long or more can regenerate themselves ...