So even bird-fleas may be collected from mammals and typically mammalianfleas from birds.
Many organic remains have been preserved in this fashion, but this is the first mammalianparasite that has been found.
The fluid from the stomach of the fleas when they were crushed was transparent and not red like vertebrate blood which often exudes when a mammalian flea is pinched and cracked open.
But to avoid any such criticism, let us take the mammalian subdivision only.
Nor, again, can any such reply be made to the fact that there are far more numerous orders and genera of mammalian remains in the tertiary formations than in the secondary formations.
Again, a necessary correlation might be assumed between the dimensions of the mammalian uterus and those of the pelvis.
The first important fact we have to face here is the complete absence of mammalian remains.
The direct descent of man from some extinct ape-like form is now beyond doubt, and admits of being traced much more clearly than the origin of many another mammalian order.
Quite different, and much more incomplete, is the palaeontological evidence, if we go further back into the Secondary or Mesozoic age, and look there for the older ancestors of the mammalian series.
A standard work on mammalian embryology is his 'Entwicklungsgeschichte des Menschen und der hoeheren Thiere,' a text-book of which the second edition appeared in 1879.
A mammalian mother is as hostile to the enemy of her young as to her own enemy.
But there are also some mammalian species in which male and female remain together even after the birth of the offspring and the father defends his family against enemies.
Consider a recent article in Nature, "A universal RNAi-based logic evaluator that operates in mammalian cells.
Mammalian ova, owing to an almost complete lack of yolk, are all small.
And there is one other important factor: Mammalian life is created in a universe where only life exists.
Only because of the developed toughness, acquired through the aeons, does the majority of mammalian life choose to continue.
Since Huxley wrote, it has been shewn clearly that among the mammalian animals there has been a gradual reduction in the size of the egg.
An institution like marriage is criticized by those who think that it is an ecclesiastical invention of yesterday, and that what hands have made, hands can destroy, though marriage is æons older even than the mammalian order.
The lower Eocene Knight Formation of Wyoming and its mammalian faunas.
A further study of the lower Eocene mammalian faunas of southwestern Wyoming.
The occurrence of Paleocene mammalian remains in the Fossil Basin of southwestern Wyoming.
General trends inmammalian evolution were increase in size and the tendency to become more "modern"-looking through adaptation to changing Tertiary environments.
There are, however, a complex of structural features which serve to distinguish these mammalian orders from each other.
The poorly preserved condition of these fossils makes discussion impossible except to note that they extend the known time range of mammalian habitation in the Fossil Basin.
Marsh has recently suggested a somewhat new interpretation of these interesting mammalian remains.
They have afforded mammalian fossils similar to those of Paris, though less abundantly, but they are rich in remains of marine animals and of land plants.
Thus the plant takes precedence of the animal, and the preparation was made for the mammalian life of the Eocene by the introduction of the modern flora in the Cretaceous period.
The old world again perished, and the dawn of the Tertiary shows to us at once the dynasties of the Mammalian age, which was to culminate in the introduction of man.
With the rise of the land out of the Glacial sea indications of man are believed to appear, along with remains of several mammalianspecies now his contemporaries.
Mammalian bones from archeological sites reveal that the fauna of Mesa Verde was much the same in A.
I looked down at the six crumpled mammalian bodies and the lone standing figure that looked stupidly up at us.
After all, we had been here scarcely half a year, and we hadn't really learned too much about the details of mammalian society.
The mammalian technology was sufficiently advanced for them to duplicate the essential portions of our ship, and chaos could result if they secured a road to the stars.
The row of mammalian bodies slumbered peacefully beside the airlock.
It would be interesting to observe a mammalian reproduction.
I felt that I should have some knowledge of this mammalian culture before attempting to refuel the ship.
The mammalian fauna of the Andamans and Nicobars is now known to consist of 35 positively identified species, 1 sub-species, and 4 others whose status is still doubtful.
Kachal is the most northerly of the Nicobars in which monkeys are present, and, taking into account the scarcity of other mammalian fauna and the absence of this genus from the Andamans, it seems certain that they have been introduced.
In time a number of these teeth, according to the concresent theory, cluster together so as to form the four cusps of a human molar, each one of the whale tooth points forming one of the cusps of the mammalian tooth.
The uric acid or gouty states, for example, are, as Fothergill long ago pointed out, assumptions by mammalian organs of the functions of those of birds and reptiles.
In the female the uterus may present every type of mammalian uterus from the marsupial up.
Roberts, of Thorpe, was hung at the Norfolk and Norwich Museum, "in acknowledgment of his munificent gift to the geological department of his unrivalled collection of local mammalian remains.
His association with the investigation of the Mammalian remains of the Cromer beds is recorded in the classics of English geology, and will be handed down to posterity long after the fossils in our Museum have crumbled into dust.
The Solenhofen lithographic slates would still have yielded us the half-reptilian, half-avian Archaeopteryx; the tertiary deposits would still have presented us with a long suite of gradually specialised and modified mammalian forms.
And we find Mr. Penn assigning both the Oolitic rock in which the cave is hollowed, and the mammalian remains of the cave itself, equally to the period of the deluge.
Instinctively, themammalian mother feeds, warms and defends her young.
The vast accumulation of mammalian bones which have been discovered at Pikermi, and so ably described by Gaudry, are probably to a large extent the remains of Asiatic immigrants to Europe.
The great Russian naturalist, the late Professor Brandt, distinguished five phases in the history of the Eurasian mammalian fauna (pp.
But besides these Asiatic immigrants and their modified descendants we have a small truly native Alpine mammalian fauna.
Being driven from one country to another, and exposed to innumerable enemies, new types appear and old ones rapidly vanish; in fact, there are almost constant changes in the mammalian fauna as we pass from one epoch to another.
Let us for a moment reconsider some instances ofmammalian migration from Siberia, with a view to studying more closely the nature of these great events.
Sclater, the Anglo-Scotian mammalian fauna, I herewith give a list of the species of mammals which probably migrated to Great Britain from Siberia.
The second phase was characterised by the dispersion of the Northern Asiatic mammalian fauna towards Central, Southern, and Western Europe, and this period lasted until the complete extermination of the Mammoth.
The mammalian migrants referred to are not to be looked upon as constituting the whole of our fauna at that time.
The struggle for existence being keener and the facility for migration much greater in the higher vertebrates, they--or at any rate the mammalian faunas--were subjected to more rapid changes than the invertebrates.
It is evident that in recent geological times there existed no active centre of origin for mammals in Europe, and that our continent was largely dependent on the neighbouring one for the supply of its mammalian fauna.
In the mammalian female the discharge occurs during menstruation.
