1.   Gazoo has been sent to Earth to observe the mating habits of primitive humans.

2.   Is it possible that their own mating habits are of more interest to these kids than, say, the food habits of the coyote?

3.   It was not the most auspicious spot for studying the mating habits of wild animals.

4.   Nature documentaries about the mating habits of penguins or the stalking strategies of tigers mix comedy and tragedy, awe and ridicule.

5.   No one from the golden age of Broadway came close to Porter in the acuteness with which he dissected human mating habits and their accompanying obsessions.

6.   Others can recite to you the mating habits of birds.

7.   Secrets, personal and otherwise, have become common currency in an era that holds the sex life of presidents no more private than the mating habits of elephants.

8.   So I could tell you who all the champions are in every division, and the mating habits of the wildebeest.

9.   The biologist studied the mating habits of Zootermopsis nevadensis, a type of termite native to California woodlands.

10.   They may or may not apply to the mating habits of either early or modern humans.