On today's show: sizzling bacon sounds help coral reefs, a teenager drives a tractor across Australia, scientists find out why certain vegetables are on the nose, an elderly man gives his hometown a present, and Indigenous rangers open a saltwater crocodile farm.

QUIZ QUESTIONS:

1. What type of starfish is damaging reefs?

2. What is Sam Hughes' nickname?

3. What vegetable species are cauliflower and brussels sprouts?

4. How old is Manuel Souto?

5. What do crocodile egg collectors carry for protection?

BONUS TRICKY QUESTION:

How many crocodiles can fit in the new farm?

ANSWERS:

1. Crown-of-thorns

2. The Travelling Jackaroo

3. Brassicas

4. 82

5. Wooden paddles

BONUS TRICKY ANSWER:

1,400