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Red-rimmed melania
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The red-rimmed melania, also known as Malayan livebearing snails or Malayan/Malaysian trumpet snails by aquarists, is a species of freshwater snail with an operculum, a parthenogenetic, aquatic gastropod mollusk in the family Thiaridae.
Red-rimmed melania
Red-rimmed melania shell, with the characteristic red spots and streaks apparent. Specimen length approximately 20 millimetres (3⁄4 in).
Red-rimmed melania shell, with the characteristic red spots and streaks apparent. Specimen length approximately 20 millimetres (3⁄4 in).
Melanoides tuberculata
Melanoides tuberculata
Variety of Melanoides tuberculata shells, some of them are dark brown or nearly black.
Variety of Melanoides tuberculata shells, some of them are dark brown or nearly black.
Parthenogenesis
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Parthenogenesis is a natural form of asexual reproduction in which growth and development of an embryo occur directly from an egg, without need for fertilization. In animals, parthenogenesis means development of an embryo from an unfertilized egg cell. In plants, parthenogenesis is a component process of apomixis. In algae, parthenogenesis can mean the development of an embryo from either an individual sperm or an individual egg.
The asexual, all-female whiptail species Aspidoscelis neomexicanus (center), which reproduces via parthenogenesis, is shown flanked by two sexual spec
The asexual, all-female whiptail species Aspidoscelis neomexicanus (center), which reproduces via parthenogenesis, is shown flanked by two sexual species having males, A. inornatus (left) and A. tigris (right), which naturally hybridized to form A. neomexicanus.
A young Komodo dragon, Varanus komodoensis, produced through parthenogenesis. Komodo dragons are an example of a species which can produce offspring b
A young Komodo dragon, Varanus komodoensis, produced through parthenogenesis. Komodo dragons are an example of a species which can produce offspring both through sexual reproduction and parthenogenesis.
Honey bee on a plum blossom
Honey bee on a plum blossom
Komodo dragon, Varanus komodoensis, rarely reproduces offspring via parthenogenesis.
Komodo dragon, Varanus komodoensis, rarely reproduces offspring via parthenogenesis.