书名：ASP.NET 3.5构建Web 2.0门户网站（影印版）
The animal on the cover of Building a Web 2.0 Portal with ASP.NET 3.5 is a giant
green sea anemone (Anthopleura xanthogrammica). These anemones are found on
rocks in tidal pools, rocky outcroppings, and concrete pilings from Alaska to Panama
in intertidal and subtidal zones. The giant green sea anemone varies in size but can
reach heights of 30 cm, have a 17 cm base, and a crown or head of 25 cm.
The giant green sea anemone gets its color from green pigment in its epidermis, so
the more sunlight it is exposed to, the more green it becomes. This anemone is a solitary
and mostly stationary invertebrate from the Cnidaria phylum, which also
includes jellyfish. Like a jellyfish, the giant green sea anemone stings its prey with
poison tentacles and then draws the food to its mouth. These anemones enjoy a
carnivorous diet of mussels, sea urchins, and small fish, and have been known to eat
a giant crab in 15 minutes. Clownfish are immune to its stings and often have symbiotic
relationships with anemones. Scientists are experimenting with the poison as a
cardiotonic to help ailing human hearts.
The enemies of the giant green anemone include starfish, snails, and sea slugs.
However, development in coastal areas, pollution, human foot traffic, and harvesting
for home aquariums also pose significant threats.