Animals can lose their lives due to labor

Kiwi, porcupine or spotted hyenas have a lot of pain during the breeding process, even losing their lives.

Imagine a woman giving birth to a child weighing 24 pounds, 3 times heavier than the average baby's average weight. However, this is normal for Kiwi birds.

Female Kiwis usually lay an egg that is one-fifth the weight of a body. They are the largest egg-laying birds in terms of body weight.

Female Kiwis usually lay an egg that is one-fifth the weight of a body.

The reproduction of the lizard Tiliqua rugosa is also 'hard'. They only give birth to one or two children each time. However, newborn baby lizards may be as heavy as 1/3 of the mother's lizard body weight. This is like a woman giving birth to a 7-year-old child.

In some species, juveniles are not large in size but breeding is still very difficult, such as porcupines.

Sharp hairs help protect them from predators, but this sometimes causes danger to the mother porcupine.

Unlike most rodents, there are usually no hairs at birth. The porcupette (porcupette) was born with a full coat.

Normally, they do not cause problems for mother porcupines because the porcupine hair is usually soft at birth and hardens up after a few hours. However, complications may occur. The baby porcupine is sometimes born upside down (the tail part comes first), then the soft hairs can still plug into the birth canal.

Referring to the derivative road, the spotted hyena is a very special case. Females with external genitalia that look like penis in males are called dildos (pseudo-penis). The female hyena gives birth to the baby through the dildo and this part can be torn during the reproductive process. This not only causes pain but can even take away the life of the mother hyena.

In fact, about 15% of hyenas are the first time they give birth.