Aug 23, 2025
still hanging on in there
Rusty Crayfish, photographed by Chalon Boesel (Source), submitted via ask anonymously
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still hanging on in there
Rusty Crayfish, photographed by Chalon Boesel (Source), submitted via ask anonymously
This is a...
critter
creature
beast
Image by Ryan Hodnett, CC BY-SA 4.0
For MerMay I wanted to give some representation to our oft forgotten freshwater mermaids. This Northern Pike mermaid lives in Lake Superior, and is accompanied by a Rusty Crayfish, a Freshwater Sunfish, and an Autumn Meadowhawk dragonfly. She is wearing a flannel bikini top due to the cold temperatures of Lake Superior and the local Midwest cultural influences on the Lake Superior mermaids.
Lake Superior contains 10% of the world's fresh water, and is the largest freshwater lake in the world, so large it is actually a freshwater inland sea. If we're going to find a freshwater mermaid, it would be in Lake Superior!
Uncharismatic Fact of the Day
Chemical cues are an important part of communication for many animals, but the rusty crayfish takes it in an unusual direction. When individuals encounter each other, they use odors from urine to determine how to react. The stronger the cue, the less aggressive they are during the ensuing fight. A victorious male will also recognize the urine of a previously defeated opponent and will display dominance before attacking.
(Image: A rusty crayfish (Faxonius rusticus) by Peter Chen via Wikipedia)
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