The Washington times., 1920-03-21

distinct evolutionary advance. First there
was simple sensory apparatus for seeing,
until. after evolutionary processes COL
tinued. there arose an internal co-ordtnat-
ing centre of sight. A central completely
of the nervous system denotes morpho-
logical advance. II 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 De
equipped with sense organs OF larger slze'
the character cannot be regarded as or
structural superiority unless associated
with a less complex nervous system. which
Is seldom the case. The male ant is there-
fore dubbed as decidedly inferior to the
female as regards its nervous system as
whole The secondary condition Oh iorm
and coloration generally are to the ctedit
Of the male ant, but. as such characters
lack conservatism. that is, are not perma-
nent. they are said to imply no structural
value.
The female has better brain and greater
organic completely. Also the nul 'e cells
of not only insects. but OF rotarians ana
crustaceans. are found to be more special
lied than the similar cells Of the males
The big point of the French inTestigat-
ors. affirmed also by recent papers or other
morphologists. is that nature stores more
nourishment, or yok substance. in the
eggs from which females are to emerge,
giving better food supply for the embryos.
Investigation of many specialists sho"
Sat the cells from which males are to
l..nergo have only a 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
than do males The male rotarian, for in
stance is born from a smaller egg than the
female lives day or two without feedlng'
having no digestive organs. then dies. me
female on the contrary. is nourished while
in the embryo stage by yoik stored within
the egg, energies a larger and more COM
plicated rotaran. and lives for months.
The rotarians arc rather small wafer
forms among the most beautiful and strik-
ing of all Known animals.
The American Museum entomologist.
Frank f.. Lutz, says OF the water bug
belostoma: 1.-The females, and also the
females of certain other genera, fasten
their eggs on the backs of the males. II
20 this function. but cannot help them
selves" The males are thus forced to
carry the eggs TO the brood chamber
against their WILL Another order of In
sects Is mentioned in which the females
force the males to carry the young. Lutz
states: MANY people think all ants are
wingless because they see only the work
ers. However. the perfect FORMS, which
are usually produced but once per year.
are fully winged and indulge in nuptisil
flight. After the fight the males die but
the females settle down to the st.y-at'
home tasks. The rearing OF all except the
first of the progeny is attended to by old
maid daughters unless the species has
learned the trick Of keeping servants or
slaves"
One species OF South American monkey
Is said actually to come in the category OF
female dominance, the male being forced
to care for the young. This also applies
10 certain species OF birds. Even the male
ostrich Is not immune and must sit on the
eggs aud watch the young for a coitain
fixed number of hours.