I don't believe these invertebrates started life without their spines.
A lot of subjects, such as reptiles and invertebrates, don't get the attention.
Wildflower meadows need cutting, but conservationists usually advise to do so in the autumn, after flowers have seeded and invertebrates are hunkered down for the winter.
From not listening to staff and bending to whims of bigger jellies that live in the even darker ocean depths, to stubbornly maintaining the status quo, these poor invertebrates cannot help trying to be everything to everyone (however obvious it is that this just won't work).
Even if your eyes don't meet over the invertebrates, at least you will have learned something new.
The site, now engulfed by Los Angeles, has yielded millions of bones from dozens of vertebrate species, and also hundreds of species of invertebrates, since mass excavations began in 1913.
When still-undiscovered invertebrates, fungi and micro-organisms are added, estimates vary wildly, from 5m to 100m species.Earth, to put the matter succinctly, is a little-known planet.
Indeed, a company called Sirtris Pharmaceuticals is already running trials of drugs that affect proteins called sirtuins a group of enzymes which experiments on invertebrates have shown to be involved in extending lifespan.Dr Harrison and his colleagues picked a different molecule that has been seen to work on invertebrates: rapamycin.
They kill both fish and invertebrates, irrespective of their commercial value.
It therefore looks as though gulls are homogenising the local ecosystems by carrying invertebrates around.
Some invertebrates, particularly insects, were also adversely affected.The Broom's Barn researchers, however, felt that this problem might be overcome by changing the way the glyphosate was applied.
