...Bogert (1943:324) found that young rattlesnakes are born with functional fangs in the two inner sockets...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...It would beuseful, and would facilitate discussion, to have data on gonadal conditionof oversummering birds; any functional enlargement wouldbe worth documenting...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...The animal, indeed, though bordering ontyphus, will sink under the effect of functional derangement in thebreathing passages...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...Vestigial: small or degenerate: only a trace or remnantof a previously functional organ...
John. B. Smith 「Explanation of Terms Used in Entomology」
...It will be remembered that a may-fly() undergoes a moult after acquiring functional wings, emerginginto the air as a 'sub-imago...
Geo. H. Carpenter 「The Life-Story of Insects」
...Jacobi(1931: 24) merely remarks that in the Reindeer the mammae number four,or occasionally six, but that the supernumerary ones are not functional...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...This longer duration of thefirst stage of the poisoning process is no doubt owing to a higherorganisation and greater functional power of the motor nerve centres ofdogs...
A. Mueller 「On Snake-Poison: its Action and its Antidote」
...The form of the stapes, tabularand otic notch suggest a functional tympanic membrane, whichcould not have occurred in a gill-breathing larva...
Theodore H. Eaton 「A New Order of Fishlike Amphibia From the Pennsylvanian of Kansas」
...Thus, it seems that in Conophis onlyone pair of grooved teeth is functional at any one time, although usually replacementteeth are present behind and beside the functional one...
John Wellman 「A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America)」
...Inthe male Amphibia the Müllerian duct only remains as a rudimentary organwithout any functional significance, as Rathke’s canal (Fig...
Ernst Haeckel 「The Evolution of Man」
...The phenomenon that it is most imperative to recognise in this connection isthe inheritance of functional variations...
Ernst Haeckel 「The Evolution of Man」
...5 ) where its circular and radiating form contrasts so beautifully withthe functional straight lines of architectural design...
Richard Glazier 「A Manual of Historic Ornament」
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