Hiding in Plain Sight: Birefringence   13 Jun 2005 20:20
Sea animals must solve many problems. How to survive crushing pressures? How to keep moving in freezing temperatures? How to stay afloat? As land dwellers, we can appreciate these problems. But one sea-dweller problem might escape our notice: how to hide?

Measuring the Color of Deep-sea Animals   13 Jun 2005 20:01
Unlike animals on land or in shallow water, where skin, feather, and fur coloration may differ within habitats, deep-sea animals follow a surprisingly regular pattern in their coloration. Blue animals live near the surface.