The oldest heart known to man has been discovered in Western Australia’s north.

Found inside a 380 million-year-old ancient jawfish, it’s given scientists further insight into evolution.

Palaeontologist Kate Trinajistic told Gareth Parker on 6PR Breakfast the animal’s stomach, intestine and liver were also beautifully preserved. 

“It tells us that these very ancient ancestors weren’t simple,” Professor Trinajstic said.

“We tend to think of primitive things as also being simple things,

“This shows us that 380 million years ago, these very primitive ancestors didn’t look much different to what modern sharks do today.”

Tap PLAY to hear how the incredible discovery was made.