4
Djur (Fach) / behaviour (Lektion)
NA
Diese Lektion wurde von gustavmeck erstellt.
Diese Lektion ist leider nicht zum lernen freigegeben.
- basics of reproduction • sexual reproduction • viviparous (appart from 2 egg laying) • lactation in mammary glands • parental care • reproduction within body
- attraction of opposite? indirect? direct? • calling (indirect) • pheromones and secretion (indirect) • courtship (direct) • displaying (indirect) • best habitat (indirect) --> all attraction is species specific
- mating systems • monogamy • polygamy (polygynous, polyandrous) • promiscuity
- Polygyny and consequences? • sexual dimorphism • males more aggressive • weaponry • female invest in young, more choosy in mating material
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