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Eating your siblings? Galapagos sharks exhibit intrauterine cannibalism, a phenomenon known as adelphophagy, where the strongest embryos consume their weaker siblings while still in the womb. This behavior is common among some shark species, particularly those in the requiem shark family, and serves as a survival strategy. By eliminating competition early, the most developed embryo ensures greater access to the mother’s nutrients and emerges as a stronger, more viable pup at birth. This form of
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