Female seahorses forget their pregnant male partners if separated

Some seahorses pair for life, with the males carrying the pregnancies – but if the pair are separated for even a few days, the female seems to forget the male

Life



26 October 2021

By Joshua Rapp Learn

New Scientist Default Image

Lined seahorses (Hippocampus erectus) amongst corals, The Bahamas

Shane Gross / naturepl.com

Male seahorses are sometimes labelled nature’s best fathers, given that they form close, monogamous partnerships with a female and carry the pregnancy from shortly after fertilisation all the way to birth. But female seahorses may see things differently. They forget the long-term bond they share with their male partner if the two are separated even for a few days.

Lined seahorses (Hippocampus erectus) are sexually monogamous, typically mating for life. Like other seahorses, they are unusual in that the males get pregnant, …

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