science & health
Get flash to fully experience Pearltrees
dinosaurs and extinct animal fossils
staying healthy (non-diet)
astronomy, outer space and our solar system
Bad docs bad drugs
After every mass shooting, the gun debate splits into two camps: One side says it easily could have been avoided if these maniacs weren't allowed to have guns; the other says it easily could have been avoided if each innocent victim had only gone through their daily lives in cover formation, armed like the space marines entering the giant murder womb in Aliens .
Exploring the depths via scuba or free diving is one of those things that seems really cool in theory.
food and nutrition
Microchips for People RFIDs