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Bananas in Pyjamas celebrate 25 years of chasing teddies

ABC TV's Bananas in Pyjamas is celebrating 25 years, and to mark the occasion the Royal Australian Mint has launched a commemorative coloured coin set.

The 20 cent and 5 cent pieces feature images of the twin Bananas and Rat-in-a-Hat.

"It's the first time we've had colour on a 5 cent piece," Mint CEO Ross MacDiarmid said.

The Bananas in Pyjamas first aired on Australian television in 1992 as a live-action series featuring B1 and B2 and teddy bears Lulu, Morgan and Amy.

Why are humans still drawn to fire after thousands of years?

Humans have long been drawn to fire; our ancient ancestors used it for warmth, protection and cooking.

In fact, fire was critical for our evolution.

But thousands of years later, with all our modern electric lighting and cooking facilities, fire has become a comfort rather than a necessity in the developed world.

So why then are humans still fascinated by fire?

One suggestion is that humans are born with an instinct to learn how to build and control fire, and if we don't get the chance to master it, we remain attracted to it as adults.