In the animal world, why are males generally better looking than females? | Tutu Science Fiction

In the animal world, why are males generally better looking than females? | Tutu Science Fiction

Q

What animals are born from males?

A

There is only one species of seahorse. The survival rate of seahorses is too low. They need to reproduce more offspring quickly. Female seahorses lose to male seahorses in fertility from the beginning because they do not have a brood pouch. The brood pouch on the abdomen of male seahorses can fertilize eggs. Before the baby seahorses mature, they will be cared for and fed by the "father". When the baby seahorses mature, they will be put into the sea by the "father" to start a new life journey.

Vocabulary

Eliminate Concern

Peacock hormone

Fan Economy Undertake

Dimension (dimension) Counter-example (counter-example)

Life style Mandarin duck

Reproductive system (genital system) Offspring (offspring)

efficiency competition elk

strategy (strategy) medical examination (medical examination)

destiny pouch tolerant

Sexual dimorphism Defense

Column consultant/ Dr. Zhang Dake, associate researcher at the Center for Advanced Biomedical Engineering, Beihang University

Produced by/ Ke Rongyi

Producer/ He Na

Co-ordinator/ Wang Xiaoying

Chief Writer/ Zhang Zhouxiang

Drawing/ Vasily Lee

Internship/ Lu Xiaohang and Li Kexin

Source: Tutu is the way

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