Capitolo 58
airily on his/her native stones, with two claws as usual. True, in these
cases the tail and the claw it doesn't bud out to turn in a new lizard or
a new lobster. But that is a criminal punishment the tallest organisms they have to pay
for their extreme complexity. They has lost that plasticity that
the liberty of growth that characterizes the simplest and more primitive
forms of the life; in their case the power to produce fresh organisms
whole from a solo fragment, once diffused equally on the whole one
body, is now confined to the certain cells specialized that, in them
developed form, we know as seeds or eggs. Anchor, also among animals, to a
low stage of development, this original power to reproduce the whole one
from a solos rests of inherent part in the organism; for You you/he/she can cut
on a hydra of fresh-water in one hundred small pieces, and every pieces want
is able of to grow afresh in a complete hydra.
Plants of desert would now hold back naturally, this primitive tendency in a
very tall degree; for them they are especially organized to withstand to
drought--being the survivors of generations of drought-test
ancestors--and, as the camel, they often has to fight on through
long periods of time without a drop of water. Precisely the same thing
it happens to house to many of our enough small stone-crops of European. ME
has a near rockery my house covered with the small white sedum of
our gardens. The birds peck at away a small leaf or I often copper; it allows to fall
on the dry ground, and he/she remains for days without giving there a signal of
life. But his/her thick epidermis the salute indeed to wither; and
hardly the precipitations, face pee white rootletses bud out of the bottom
side of the fragment as it lies, and it grows among not very in a coolness
small plant of sedum. This way, what seems as destructive agencies
they, is turned in the mere tenacity end of the life in a
secondary he/she wants to say of propagation.
That's why the prickly pear is so common in all the countries where the