This is caused by a genetic 'switch' where the animals all derived from a particular ancestor....hope this helps
<span>Animals are generally more scared of humans than humans scared of them. Mice and other familiar animals run when they sense danger. The faster they run, the more danger they likely feel. Even humans have a natural instinct to flee when sensing danger.</span>
Answer:
Smoking, drinking and taking substances can cause an early pregnancy
Explanation:
