杏吧原创

sea turtle hatchlings

Life

Why climate change is creating more female sea turtles and crocodiles

As the world gets warmer, animals whose sex is determined by temperature are finding cool ways to control their own fate. But can they adapt in time?

Volunteers working in soup kitchen

Life

No more goody two shoes: Why true altruism can鈥檛 exist

Indian elephant mother with young drinking in water a

Life

Female Asian elephants mysteriously stop reproducing later in life

Mouse studies could help us better understand how embryos develop

Health

Early mouse fetuses generated without sperm or eggs for first time

Daily hormone cycles might affect mood and fertility

Health

Women have a daily hormone cycle as well as a monthly one

Parents of young children have less sleep, money and free time

Mind

Having kids makes you happier, but only when they move out

In some countries, more than 107 boys are born for every 100 girls

Health

Sperm sorting method could prevent girls being born, scientists warn

IVF

Comment

IVF add-ons are a waste of money 鈥� fertility clinics should ban them

jellyfish

Life

Some jellyfish sperm have stingers that fire inside females

Sex

Sex

Health

The pioneering podcast that’s breaking the silence on women’s health

Life

Long penises help hermit crabs avoid being robbed during sex

Life

Core set of genes explain why some animals stick to one mate at a time

Life

Some spiders produce milk 鈥� and it鈥檚 more nutritious than cow鈥檚 milk