A female black widow spider can store the sperm from one mate and use it throughout her lifetime. Offspring. One egg sac can contain anywhere from 20-900 eggs. |
Western black widow spiders spin webs that do not take on a definite shape or form. The webs vary in location, but more so in appearance. The silk that creates ... |
Instead, the venom is an adaptation that allows the spider to paralyze its enemy. After catching an insect in its web, the black widow bites to kill the bug. |
Juveniles appear orange, brown, and white in colour and only achieve the trademark black colouration after multiple molts. Females may grow up to 13 mm long, ... |
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