An external fixator acts as a stabilizing frame to hold the broken bones in proper position. In an external fixator, metal pins or screws are placed into the bone through small incisions into the skin and muscle.n external fixator acts as a stabilizing frame to hold the broken bones in proper position. In an external fixator, metal pins or screws are placed into the bone through small incisions into the skin and muscle.
Cockatoo Squid This transparent cockatoo squid (Leachia sp.), also known as a glass squid, lives in the depths of the ocean and has many adaptations to help it survive there. It retains ammonia solutions inside its body that give it a balloon-like shape and help it float.
Scientists have vastly underestimated the number of fish in the sea - and say the majority of them have never been fished. Australian researchers found that mesopelagic fish, which live between 100 and 1000m below the surface, constitute 95 per cent of the world's fish biomass and are untouched by fishing. They say the secret to the animal's success may be its ability to evade fishing nets.