Why do biologists look forward to casual Fridays?

How do amoebas make calls?

Why did the teacher lead a marine biology seminar?

What did the baby chick say when he saw his mother sitting on an orange?

What do you call a blind dinosaur?

What did the giant flower say to the tiny flower?

What are a teacher's least favorite words to hear every summer?

What day of the week takes nothing seriously?

Why did the worker get fired from the calendar factory?

What is the best way to keep dogs out of the street?

Which vegetables have the hardest time swallowing their food?

How is life like toilet paper?

Why couldn't the leopard play hide and seek?

How do you prevent a summer cold?

Why does the photon not need a suitcase?