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Various explanations have been proposed for the evolution of the complex structure of the palpal organs found in most groups of spiders. One is the "lock-and-key" theory. The epigyne of the female spider also has a complex shape, and studies of pairs killed instantaneously during copulation show a precise fit between the male and female ...
Any fast moving object (i.e. bee, dragonfly, leaf, etc.) that enters a territory will be quickly chased. The chase allows the male bee to determine if a female is unmated, or if an enemy male is in his territory. If it is a male bee, the territory owner will chase it out, but not beyond the boundary of the territory.
The Entelegynae or entelegynes are a subgroup of araneomorph spiders, the largest of the two main groups into which the araneomorphs were traditionally divided. Females have a genital plate and a "flow through" fertilization system; males have complex palpal bulbs.
More specifically, the male uses his silk to immobilize the female's legs I and II while he holds her legs III and IV. [9] Prior to mating, the male follows the female, periodically releasing his dragline (a line of spider silk). Slowly approaching the female from behind, the male traces the female's path until he reaches the female's hind legs.
Fertilization duct: A duct in female entelegyne spiders leading from the spermathecae to the uterus [10] Larinioides cornutus spider showing folium on abdomen. Folium: A broad leaf-like marking along the medial line of the top of the abdomen; Fossa (plural fossae): A pit or depression, typically in the epigyne [12]
Here are some of the mot common bug, insect and spider bites you might be dealing with — and insect bite pictures to help you figure out what type of creature is responsible. Tick bites
No, it's not a BBC Nature Video. It's a short video documenting the fight for survival between a bumble bee and a spider, and it's shot (and beautifully narrated) by London musician Keith John Adams.
Social media also played a large role in the peacock spider’s rise to fame when a video of a male spider performing his ritual mating dance went viral. As of December 2024, we’ve now ...