What is Different between Animal and Human about Instinct?

Biology Teacher explains students about instinct between human and animal.

Teacher:
Human has instinct, but animal has no instinct.

Chroch is mischievous. He asks teacher that:

Chroch:
What is different between chicken and human?

Teacher:
Just a minute of thinking, teacher has no feedback, so she turns this question to other students like what Chroch asked.

Chana:
Human births in Chicken Year, but chicken have no birth in Human Year.

Cheata:
Human gets chicken cough, but chicken have no human cough.

Mey:
Human is night blindness, but chicken has no human night blindness.

All in all, Chroch hand up and add more answer:
Please listen all:
Human absorbs chicken egg, but chicken do not eat human’s testicles.

At that time, loudly laugh appears in the class!

Teacher:
Oh oh oh !!!!