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The variety of male copulatory organs in species of Dactylogyrus. Other characteristics of Dactylogyrus species include the appearance of four eye-spots, 14 marginal hooks (7 pairs), one to two connective bars and two needle-like structures and spindle-shaped dactylogyrid-type seminal vesicles. [5]
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]
Possibly the original butter-fly. [6] A male brimstone (Gonepteryx rhamni) in flight.The Oxford English Dictionary derives the word straightforwardly from Old English butorflēoge, butter-fly; similar names in Old Dutch and Old High German show that the name is ancient, but modern Dutch and German use different words (vlinder and Schmetterling) and the common name often varies substantially ...
See Snake scales for terminology. A many-striped skink in Bali, Indonesia. Eutropis multifasciata is a species of skink that often shows prominent coloured dorsal bands. They have a number of other distinctive features that allows this species to be distinguised from other species, particularly in the detail of the arrangement of their scales.
Biak scrubfowl, Megapodius geelvinkianus; Melanesian megapode, Megapodius eremita; Vanuatu megapode, Megapodius layardi; New Guinea scrubfowl, Megapodius decollatus; Orange-footed scrubfowl, Megapodius reinwardt †Pile-builder scrubfowl, Megapodius molistructor Balouet & Olson 1989 †Viti Levu scrubfowl, Megapodius amissus Worthy 2000
Childbirth, also known as labour, parturition and delivery, is the completion of pregnancy where one or more babies exits the internal environment of the mother via vaginal delivery or caesarean section. [7]
The carpet chameleon (Furcifer lateralis), also known as the jewel chameleon or white-lined chameleon, is a species of chameleon that is endemic to eastern Madagascar. [1] [2] [3] It is a relatively small chameleon and especially females tend to have bright markings in many colours, whereas males are mostly green and whitish or green and yellowish.
The lesser chameleon mainly inhabits the arboreal habitat of tapia forest, dominated by the Uapaca bojeri tree, as well as other endemic habitats such as humid montane habitats between the ranges of 1,000 and 1,650 metres above sea level in the region of Madagascar. [1]