Male Mexican mollies grow mustaches to attract mates
... (PhysOrg.com) -- Some male Mexican molly fish sport a structure like a mustache on their top lips, The research only looked at whether or not the which scientists have now discovered are attractive mustache is visually attractive to females, but to female mollies and may represent a sexually Profess ...
... (PhysOrg.com) -- Some male Mexican molly fish sport a structure like a mustache on their top lips, The research only looked at whether or not the which scientists have now discovered are attractive mustache is visually attractive to females, but to female mollies and may represent a sexually Profess ...
Notes 7-8
... produced, females who reproduce asexually will on average produce twice as many daughters as females who reproduce sexually. This is the two-fold cost of sexual reproduction. The fact that many species retain the capacity for both sexual and asexual reproduction tells us that sexual reproduction cou ...
... produced, females who reproduce asexually will on average produce twice as many daughters as females who reproduce sexually. This is the two-fold cost of sexual reproduction. The fact that many species retain the capacity for both sexual and asexual reproduction tells us that sexual reproduction cou ...
To reproduce - SDSU Heart Institute
... • individuals evaluate potential mates relative to available pool of possibilities to select superior candidates for mating • superior candidates should theoretically combine to produce progeny with best chance of survival • if criteria are not met, sexual desire does not occur • success depends upo ...
... • individuals evaluate potential mates relative to available pool of possibilities to select superior candidates for mating • superior candidates should theoretically combine to produce progeny with best chance of survival • if criteria are not met, sexual desire does not occur • success depends upo ...
Eisenia veneta - St. Olaf Pages
... behavior: Honest or arbitrary traits?” Journal of Theoretical Biology, 1995, 4:453-461. Carothers, Eleanor E. “Notes on the taxonomy, development and life history of certain Acrididae (Orthoptera).” Transactions of the American Entomological Society, 1923, 49:7-24. Mardo, M.C. et. al. “Female fitnes ...
... behavior: Honest or arbitrary traits?” Journal of Theoretical Biology, 1995, 4:453-461. Carothers, Eleanor E. “Notes on the taxonomy, development and life history of certain Acrididae (Orthoptera).” Transactions of the American Entomological Society, 1923, 49:7-24. Mardo, M.C. et. al. “Female fitnes ...
Turtle, Eastern Box
... or orange. Plastron has flexible hinge, allowing nearly complete shell closure. Head and legs have yellow markings. Male usually has red eyes, red on front legs and concave plastron. Toes are slightly webbed. Lifespan: Up to 138 years. Reproduction: Mating can occur spring through fall; female may r ...
... or orange. Plastron has flexible hinge, allowing nearly complete shell closure. Head and legs have yellow markings. Male usually has red eyes, red on front legs and concave plastron. Toes are slightly webbed. Lifespan: Up to 138 years. Reproduction: Mating can occur spring through fall; female may r ...
Mating Systems in Sexual Animals | Learn Science at Scitable
... caring for their offspring, or when there is great variation in the quality of the females as mates within a population. If males are choosy about their mate, then over time females may evolve ornamentation or coloration that is subject to sexual selection. ...
... caring for their offspring, or when there is great variation in the quality of the females as mates within a population. If males are choosy about their mate, then over time females may evolve ornamentation or coloration that is subject to sexual selection. ...
Mating behaviors of insects
... some main points that generalize this behavior. Mating behavior starts by locating mates. Male and female have different strategies toward copulation and reproduction. After locating mates is courtship; one male and female have encountered each other, they may proceed directly to copulation or may f ...
... some main points that generalize this behavior. Mating behavior starts by locating mates. Male and female have different strategies toward copulation and reproduction. After locating mates is courtship; one male and female have encountered each other, they may proceed directly to copulation or may f ...
10-Sociality
... Parthenogenesis (unisexual species) Possible advantages of sexual reproduction include: two parents can raise twice as many progeny mix genes with desirable genes (enhances fitness) reduced sibling competition heterozygosity biparental origin of many unisexual species ...
... Parthenogenesis (unisexual species) Possible advantages of sexual reproduction include: two parents can raise twice as many progeny mix genes with desirable genes (enhances fitness) reduced sibling competition heterozygosity biparental origin of many unisexual species ...
K and r Reproductive Strategies Each species on the earth employs
... Those organisms described as r-strategists typically live in unstable, unpredictable environments. Here the ability to reproduce rapidly (exponentially) is important. Such organisms have high fecundity and relatively little investment in any one progeny individual; they are typically weak and subjec ...
... Those organisms described as r-strategists typically live in unstable, unpredictable environments. Here the ability to reproduce rapidly (exponentially) is important. Such organisms have high fecundity and relatively little investment in any one progeny individual; they are typically weak and subjec ...
Intra-sexual selection
... Why is there so much variation in mating systems and parental care? • Solitary species • Monogamous species • Polygynous species with 1 male, > 1 female • Polygynous species with >1 male, > 1 female • No parental care • Bi-parental care • Male parental care only • Female parental care only ...
... Why is there so much variation in mating systems and parental care? • Solitary species • Monogamous species • Polygynous species with 1 male, > 1 female • Polygynous species with >1 male, > 1 female • No parental care • Bi-parental care • Male parental care only • Female parental care only ...
File
... Language is used by primates including humans. Primates: use vocabulary they associate ...
... Language is used by primates including humans. Primates: use vocabulary they associate ...
Sexual Selection
... Endurance rivalry The most persistent males are the most successful breeders Extended effort into breeding activity shows that the animal is in good physical condition and is an efficient forager. ...
... Endurance rivalry The most persistent males are the most successful breeders Extended effort into breeding activity shows that the animal is in good physical condition and is an efficient forager. ...
File - Mrs. LeCompte
... Classical Conditioning = the connection of two different stimuli (at the same time) to each other o Ex. Pavlov’s dogs: rang a bell when presenting dogs with food If bell was rung later, dog would salivate in anticipation of food Operant Conditioning = a stimulus is associated with a particular ...
... Classical Conditioning = the connection of two different stimuli (at the same time) to each other o Ex. Pavlov’s dogs: rang a bell when presenting dogs with food If bell was rung later, dog would salivate in anticipation of food Operant Conditioning = a stimulus is associated with a particular ...
