Why are things like crab blood and scorpion venom so valuable?

Science is always finding new ways to harness nature. Antonia, Ellie and Laura discuss what the blood from a certain type of sea creature is used for, and how scorpion venom is being studied for a whole host of medical research. They also look at Pangolin scales used to treat some ailments and a giant tuna which sold for a small fortune, but might not necessarily be worth their price tag.

Fact check:

• The cost of crab blood
• The news article from NPR about crab blood
• Facts about bacterial toxins
• News about scorpion venom
• More news about scorpion venom
• The journal article explaining the many potential uses of scorpion venom
• Pangolin scales in the news
• Some behavioural science used by the UK Government communications service to help change behaviours, which underscores Antonia and Laura's perspectives
• Possibly the world's most expensive tuna