Bigger bodies have more inside space, and it appears that Alaskan bears’ advanced stature gives their bodies ideal locations for some really massive tapeworms. You could wonder, “How do we know this? “. Unfortunately, it’s not even that unusual, so trail cameras and wildlife photographers have captured plenty of images.
Director of science communications for The Nature Conservancy Matthew Miller highlighted the compelling body of video evidence showing Alaskan bears occasionally stroll around with what seems to be streamers tailing from their anuses in a recent blog post for Cool Green Science. The pale tendrils are actually parasites, not the remnants of some wild party. Honestly enormous parasites.
One particular video that Miller claims to have included for your “watching enjoyment” is a massive black bear trailed by one of these mystery strings. On Prince of Wales Island in Alaska, naturalist Michael Kampnich caught the horrifying picture, which looks to feature a tapeworm that is at least two meters (6 feet) long.
According to reports, bears can try to rouse the freeloaders by performing the well-known bear tree pole dance, but this tactic doesn’t always work, as was the case for the bear in Kampnich’s video. Bears in Alaska frequently harbor mega-worms as well, but whence do they originate?
Bears in Alaska are renowned for their adoration of salmon, which they often scoop out of freshwater rivers with their paws. Unfortunately, the same rivers also harbor tapeworm eggs, which crabs eat. The fish that gobble up those identical crustaceans are also the same salmon that the bears scavenge. Capiche?
After ascending the food chain to the top, the worm settles down in the bear’s digestive tract, where it develops to enormous lengths before escaping. The parasitic worm will lay a lot of eggs throughout its life, and these eggs will contaminate the bears’ excrement that they drop in rivers, starting the tapeworm’s lifecycle all over again.
In the stomachs of various animals across the world, there are several different types of tapeworm, but the one that lives in Alaskan bears may grow to a maximum length of nine meters (30 feet). This man, who removed a 9.7-meter (32-foot) tapeworm from his rectum before starting an elaborate picture shoot, proves that not only bears are susceptible to contracting the worms.
Parasites are an essential group of creatures that perform a crucial part in the environment, despite the horrifying experience of having such a guest interrupt your bathroom time. A scientist agreed to get infected with 50 hookworms since certain of them are supposed to aid humans in reducing the aging process and are the topic of important study.
[H/T: Cool Green Science]
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