Waspie_Dwarf Posted September 13 #1 Share Posted September 13 This fish sizes itself up in a mirror before it decides to fight Learn more ➤ https://www.newscientist.com/article/2447414-fish-size-themselves-up-in-a-mirror-to-decide-if-they-can-win-a-fight/ 2 Link to comment Share on other sites More sharing options...
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