1. A male fiddler crab's enormous claw may get in the way of eating, but it's essential to:

fighting off predators
attracting females
cracking open shellfish

2. When lions are in the mood to reproduce, how often will they mate?

Once
Four times an hour for 3 days
Twice a day for a week

3. The fish known as a grunion is unusual because:

it is the only marine fish to lay its eggs in beach sand
it waits for high tide to spawn
Both

4. The Sea Tiger sea slug:

eats its mate after sex
is both male and female
doesn't have sex

5. When looking for a mate, Borneo's female Proboscis monkeys are attracted to:

pot bellies and big noses
long tails
fancy ears

6. When trying to find a mate, male Mormon crickets lift up females to:

check for parasites
carry them back to a honeymoon suite
weigh her to see how many eggs she is carrying

7. After mating with several females for up to 12 hours each, male Marsupial Mice:

die of exhaustion
help take care of the babies
build and decorate a nursery

8. American cicadas breed once every:

2 weeks
year
17 years