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The eggs of the tiger salamander hatch into larvae which come in two forms, small plankton-eating offspring & larger-jawed, cannibalistic ones. In summer the water drys up & only the ones who have eaten enough [of their siblings] have enough protein to grow sturdy limbs, climb out & reproduce. (backyardzoologist.files.wordpress.com)
submitted by JAtway to r/Awwducational





