Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1920-05-09

dlstlnct evolutionary advance. First there
was simple sensory apparatus for seeing
until. after evolutionary processes con.
tinued. there arose an internal co-ordina t.
ing centre Of sight. central complexity
OF the nervous system denotes morpho,
logical advance 1t results in the more
complex sense organs disappearing. to be
replaced by numerous sense organs that
are better and more useful, each being
simple rather than complex.
The French make deductions from the
above considerations. Applied to such
groups as have jointed legs-anthropod
ous-while some OF the males may be
equipped with sense organs OF larger size,
the character cannot be regarded as OF
structural superiority unless associated
Is seldom the case. The male ant is there
lore dubbed as decidedly inferior to the
female, as regards its nervous system as a
whole. The secondary condition OF form
and coloratton generally are to the credit
OF the male ant. but, as such characters
lack conservatism. that is, are not perma-
nent, they are said to imply no structural
value.
Tho female has better brain and greater
organic compleXity. Also the nurse cells
OF not only insects. but of rota rians and
crustaceans, are found to be more special
lied than the similar cells OF tho males.
me big point OF the French investigat-
ors affirmed also by recent papers OF other
morpholog1sts, Is that nature stores mora
hourishment, or yolk substance, in the
eggs from which females arc to emerge,
giving better food supply for the embryos.
Investigation or many specialists show
that the cells from which males are to
emerge have only limited amount OF
nourishment
This means that the females within the
whole range OF the animal kingdom arrive
IN the world much better fitted to survive
tnan DO males. The male rotarian for in
stance. Is born from a smaller egg than the
female. lives day or two without feeding.
having no digestive organs then dies The
!emale. on the contrary. IS nourished while
IN the embryo stage by yolk stored within
tne egg, emerges larger and more COM
p, rotarian, and lives for months.
rho rotarians are rather small water
forms, among the most beautiful and strik
Ing of all Known animals.
me american Museum entomolocist
FRANK E. Lutz, says OF the water bug
oeiostoma: The females, and also the
females or certain other genera. fasten
their eggs OF the backs OF the males II
Is said that the males do not take kindly
20 this function. but cannot help them
serves. The males are thus forced TO
carry the eggs 20 the brood chamber
against their will. Another order of in.
sects IS mentioned In which the females
force the males TO carry tho young. I,utz
states: Many people think all ants ara
wlngless because they SEQ only the work.
ers However the perfect forms, which
are usually produced but once per year.
are iniiy winged and indulge in nuptiai
1ight; After the flight the males die, but
me females settle down TO the stav-at.
home tasks. The rearing OF all except the
irSt OF the progeny Is attended to by old
maid daughters unless the species has
earned the trick OF keeping servants or
slaves"
one species OF South American monkey
S said actually to come in the category of
emaie dominance. the male being forced
o care for the young. This also applies
o certain species OF birds. Even the male
'strich is not immune and must sit IN the
ggs and watch the young for a cs-tain
xed number OF hours.