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…
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…
Parental Care in Amphibians Parental care can be defined as the activities which are directed by an animal towards the protection and maintenance of its own offspring or those of a near relative. In comparison to birds and mammals, little parental care is found in amphibians. Parental care may be Read more…
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…
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…