I Have Already Contrasted The
Climate As Well As The General Appearance Of Tierra Del
Fuego With That Of Patagonia; And The Difference Is Strongly
Exemplified In The Entomology.
I do not believe they have
one species in common; certainly the general character of the
insects is widely different.
If we turn from the land to the sea, we shall find the latter
as abundantly stocked with living creatures as the former is
poorly so. In all parts of the world a rocky and partially
protected shore perhaps supports, in a given space, a greater
number of individual animals than any other station. There
is one marine production which, from its importance, is
worthy of a particular history. It is the kelp, or Macrocystis
pyrifera. This plant grows on every rock from low-water
mark to a great depth, both on the outer coast and within the
channels. [6] I believe, during the voyages of the Adventure
and Beagle, not one rock near the surface was discovered
which was not buoyed by this floating weed. The good service
it thus affords to vessels navigating near this stormy
land is evident; and it certainly has saved many a one from
being wrecked. I know few things more surprising than to
see this plant growing and flourishing amidst those great
breakers of the western ocean, which no mass of rock, let it
be ever so hard, can long resist. The stem is round, slimy,
and smooth, and seldom has a diameter of so much as an
inch.
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