Are animals happier than humans? Science suggests that they feel similar emotions to us. But thinkers are divided on whether their feelings are stronger, weaker or the same.
Kangaroo playing air guitar wins top prize
Guitar hero: Perth’s Jason Moore captured a would-be Jimi Hendrix of the kangaroo world. Glossary
Shred - To play a very fast, difficult style of rock lead guitar. Also means to cut or tear into small pieces.
Aesop - Ancient Greek writer (c.620 – 564BC) credited with hundreds of fables: short stories telling a moral lesson, often featuring animals.
Parakeets - A small parrot with green plumage.
Annihilation - Complete destruction.