2 sentences

1. 保护孩子是母亲的本能。

   bǎo​hù hái​zi shì mǔ​qīn de běn​néng.

   Protecting her children is a mother's instinct.

   Source: Dong Chinese Dictionary

2. 大多数动物都有保护幼仔的本能。

   dà​duō​shù dòng​wù dōu yǒu bǎo​hù yòu​zǎi de běn​néng.

   Most animals have an instinct to protect their young.

   Source: Tatoeba