Human brain genes in monkeys, urine archaeology, evolving human faces, Sharks and heavy metals, life on exoplanets and how insects time their mating

Quirks and Quarks

Scientists have put a human brain gene into monkeys. Have they crossed the line?; Pee-oneering archeology. A new technique uses urine to study the ancient past; Why the long face? Human faces evolved to reveal emotions and communicate; Sharks cope with levels of heavy metals in their blood that would kill other animals; Is there life 'out there?' How we'll search for traces of life on nearby exoplanets; How do insects like ants time their emergence so precisely?

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