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Cats have seven cervical vertebrae like almost all mammals, thirteen thoracic vertebrae (humans have twelve), seven lumbar vertebrae (humans have five), three sacral vertebrae (humans have five because of their bipedal posture), and, except for Manx cats and other shorter tailed cats, twenty-two or twenty-three caudal vertebrae (humans have ...
One such study found dynamic use of spurs by males during different phases of courtship and mating in Burmese pythons (Python molurus bivittatus), with anterior to posterior spur movements varying in speed of undulation by phase. [14] Furthermore, the males exhibited use of the spurs to better position or adjust the female’s cloaca for mating.
The Burmese python (Python bivittatus) is one of the largest species of snakes. It is native to a large area of Southeast Asia and is listed as Vulnerable on the IUCN Red List . [ 1 ] Until 2009, it was considered a subspecies of the Indian python , but is now recognized as a distinct species . [ 3 ]
The male has a median tubular organ (called aedeagus or phallus) which is extended through an eversible sheath (or 'vesica') to inseminate the female. [3] The males have paired sperm ducts in all Lepidopterans; however, the paired testes are separate in basal taxa and fused in advanced forms.
The pelvis is, in general, different between the human female and male skeleton. [12] [13] Although variations exist and there may be a degree of overlap between typically male or female traits, [12] [13] the pelvis is the most dimorphic bone of the human skeleton and is therefore likely to be accurate when using it to ascertain a person's sex ...
The scientists took three adult female Burmese pythons. As one of those snakes was ingesting a 77-pound white-tailed deer, they discovered the deer was 66.9% of the snake’s mass.
It didn’t go quietly. “This boa was just as defensive as a wild Burmese python,” Rhett writes in his post. “Who knows how long it’s been out there eating bunnies (and probably cats).”
The sex organs of the green algae Chara are the male antheridia (red) and female archegonia (brown) A sex organ, also known as a reproductive organ, is a part of an organism that is involved in sexual reproduction. Sex organs constitute the primary sex characteristics of an organism. Sex organs are responsible for producing and transporting ...