Pigeon: Columba livia

Pigeon (Columba livia) – General Characters

Pigeon (Columba livia) – General Characters The systematic position of Columba livia (Pigeon) Kingdom – Animalia Phylum – Chordata Subphylum – Vertebrata Superclass – Tetrapoda Class- Aves Subclass- Neornithes Superorder – Neognathae Order- Columbiform Family – Columbidae Species – Columba livia The common name of Columba livia is a pigeon. Read more…

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Axolotl larva - Neoteny in Amphibia

Neoteny in Amphibians

Neoteny in Amphibians In some amphibians, the larva becomes sexually mature without metamorphoses or delay metamorphoses. In some amphibians, the character of neoteny is shown as the failure or delay of the larva to metamorphose while becoming sexually mature. Neoteny emphasizes the retention of embryonic or larval features in the Read more…

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uromastyx

General Characters of Uromastyx

General Characters of Uromastyx Introduction: The Uromastyx is a genus of African and Asian agamid lizards. These are commonly called spiny-tailed lizards, uromastyces, mastigure, or dab lizards. Lizards of genus Uromastyx are primarily herbivorous, but occasionally they eat insects, especially young lizards. They are mostly found in hilly, rocky areas Read more…

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respiration in lamprey

Petromyzon (Lamprey): General Characters

Petromyzon (Lamprey): General Characters Introduction: Lampreys are Anadromous or freshwater, Eel-shaped jawless fishes. They can be readily recognized by the large, rounded sucker which surrounds their mouth and by their single nostril on the top of their head. Systemic position of Petromyzon: Phylum: Chordata Sub Phylum: Vertebrata Group: Agnatha Class: Read more…

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