Lined seahorses, one male and one female, clinging to algae Shane Gross/naturepl.com
Monogamous female seahorses cheat on their male partners when they can鈥檛 smell them any more.
鈥淪eahorses can express incredible loyalty and affection once a pair has bonded during the reproductive season,鈥 says Dong Zhang at the Chinese Academy of Fishery Sciences in Shanghai.
The curvy-tailed couples usually stay together for months or years. They live within a few metres of each other and meet up at daylight for 鈥渕orning greetings鈥 that reinforce their bond 鈥 swimming in parallel, brightening their hues and 鈥渄ancing鈥, says Zhang.
They reproduce through …
