Lister's ambitious plan hopes to bring the brown bear back as well, in an attempt to recreate what Scotland was like before industrialisation took over.
However, many locals want the animals fenced in, which would technically constitute being a zoo. This would make his plan of mixing predators and prey together illegal. He wants the animals to be able to roam on his vast estate - which he has personally fenced off.
Tools designed to ensure computer code in smart cars does not crash has been inspired by hungry penguins.
The rounded sleeping capsules send guests drifting into ocean before arriving on desert island by morning.
Sitting on the saddle activates the part of the brain responsible for learning, a study has claimed.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.
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