Rare Half-Male, Half-Female Spider Found in Thailand - Scientists Say It’s a First

11 Nov 2025 | Category: Science

A spider split cleanly down the middle—one side vibrant orange, the other pale grey—has been discovered in Thailand, showing rare sexual duality.

The discovery, described in the journal Zootaxa, is the first ever recorded instance of a gynandromorph in the spider family Bemmeridae, and only the third known case in the entire group of mygalomorphs, a lineage distantly related to tarantulas. The...

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