THE HABITS OF FISHES
.
‘
45
-
and female organs ripe'n alternately in succession. The
flag-sh (Myxine) is apparen‘dy hermaphrodite to begin
With, then a male, and later a female, but the changes have
not yet been clearly proved.
Ÿ
Summing up With regard to
trying - to
,
interpret them biologically, We may
the most
-
salient features are perhaps the fanCestral pelagi‘ci and dèmefSal
(or bottom—living) tendencie’s and the greater diversity amb__g
_
the latter.
Primitively and primarily shes are:
,
pelagic,
Ï'
With a tendency to become sedentary or more sluggish ?S';
they grow older. This is
from which shes have
*
diverged. 'The sedentary shes, more Sluggish phÿsicaläljî,
_
display on the whole imore mental development, —— variety—,
choicea'nd xvorkmanship in theirhabits,ad some of them f_—‘ Ÿ'
early days emerged partly from the
become
_
fr0gsz._ It is' asiif, even in
days., the
yvorthpf an organism was—not to
the
Ï
wbrk5qr h1sns or… hands, : … and
of interest to note, that
the pa1r1ng, nestmg, carrying {of eggs and young seenzamorî‘g
'
the: frogsïjï
among the shes;_ fThe»cär€
for
properly
probably the main
factor
been learntfalready in the waters
—
hear
andin
apparently, Wheite’the variety
of,-conditions has
problems.—for themînd
,
and
to solve.7 '_ ,
Îæj…—
5
,.
«-[
_
We must
and
nesting habits have been undertakenjîdehberately by
With suîcient intelligence to
Offspring
would benet
Far from it; “it
,
to_ credit even the highest animals WiflïfSdmuchforeæght ._'
The result, success
'
their habits:did not concern them—thatlsonlythewaywe;