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Female Tortoises 'Walking Off Cliffs to Their Doom' to Avoid Sexual Advances

On Golem Grad island, male Hermann's tortoises outnumber females 19 to 1, causing female cliff falls, reduced reproduction, and a predicted female extinction by 2083.

Summary by Daily Star
The animal kingdom is filled with strange behaviours that many humans are unable to understand, but now boffins have discovered a new move from tortoises that has left them baffled

7 Articles

Right

On the island of Golem Grad in northern Macedonia, turtles are teeming, but there are strikingly more males than females. Researchers have now found out that the females commit suicide – because of the sexual aggressiveness of the males. On 19 males only one female comes on Golem Grad. This imbalance in the Greek tortoises has far-reaching consequences for the females. Because for reproduction they are hunted down by the males. Several males fol…

·Vienna, Austria
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Lean Left

The female Hermann turtles on the island of Golem Grad could soon die out. The fault is their male counterparts. They harass the females in such a way that they die – or kill themselves.

·Germany
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The tortoise population of a small island in northern Macedonia threatens to die because the aggressive males drive their female counterparts to death

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Spiegel broke the news in Germany on Monday, February 16, 2026.
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