Harvey and Adam discuss fossilised frogs, the salamander sisterhood, robots of Mars and astrobiological algae.

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SHOW NOTES:

Fossilised frogs

• Steven Spielberg murders a triceratops
• Frog image 1 
• Frog image 2 
• News article (Nat Geo)
• Scientific paper 

The Lake Pátzcuaro salamander

• Achoque image
• Axolotl image 
• News article (BBC Radio 4) 
• Chester Zoo conservation programme 

Robots of Mars

• Guide to Mars opposition 
• Dust storm animation 
• Jupiter through Harvey's telescope 
• News article (BBC) 

Far-red photosynthesis

• News article (Eurekalert) 
• Scientific paper