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Caruncles may be featherless, or, have small scattered feathers. In some species, they may form pendulous structures of erectile tissue, such as the snood of the domestic turkey. [3] [4] [5] Caruncles are sometimes secondary sexual characteristics, having a more intense color or even a different color, developing as the male reaches sexual ...
Turkey Temporal range: 23–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Early Miocene – Recent A male wild turkey strutting Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Aves Order: Galliformes Family: Phasianidae Subfamily: Phasianinae Tribe: Tetraonini Genus: Meleagris Linnaeus, 1758 Type species Meleagris gallopavo (wild turkey) Linnaeus, 1758 Species M ...
The transformation of a phenotypically female child into a phenotypically male adult at puberty, which is reported to be celebrated in Dominican culture, is the result of a genotypic male (with XY chromosomes) born with a deficiency in the enzyme 5α-reductase. 5α-Reductase is responsible for the reduction of testosterone to dihydrotestosterone.
Male turkeys leave droppings shaped like the letter “J.” Their female counterparts leave droppings in a spiral shape — and droppings can clue you into the turkey’s age.
In these cases, the male and female will be continuously assessing each other based on sexual characteristics. In the blue-footed booby , the females tend to choose males with brighter blue feet, because birds with brighter feet are younger, and thus have greater fertility and ability to provide paternal care. [ 3 ]
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.
Turkeys will peck, follow, or try and intimidate people that they're attacking. Male turkeys will puff out their chests, fan their tail feathers, strut while they're gobbling, and have special ...
The ZW sex-determination system is a chromosomal system that determines the sex of offspring in birds, some fish and crustaceans such as the giant river prawn, some insects (including butterflies and moths), the schistosome family of flatworms, and some reptiles, e.g. majority of snakes, lacertid lizards and monitors, including Komodo dragons.