Frog- Rana tigrina (Amphibian) A frog is an amphibian, living both on land water. Amphibians are the first group of chordates that lived outside water. These are coldblooded vertebrates tetrapods. Classification of Rana tigrina: Phylum – Chordata Subphylum – Gnathostomata Superclass- Tetrapoda Class- Amphibia Order- Anura Genus- Rana Species- tigrina Read more…
Parental Care in Fishes We can define parental care as an association between parents and the offspring through which the chance of survival of young ones gets increased or any behaviour performed by parents that appears likely to improve the survival and reproduction of the young. In the case of Read more…
Scales in Fishes The term Scale is derived from the Old French “escale” meaning a shell pod or husk. Fish Scale Fish scales are part of the Fish’s integumentary system, and these are originated from the Mesoderm layer of the dermis. A fish scale can be defined as the rigid Read more…
Migration in Fishes Many fishes migrate on regular basis, on a time scale ranging from daily to annually or longer. It may be of short distance over few meters to thousands of kilometers. Reason for Migration in Fishes: Fishes usually migrate to feed, to reproduce, or in some cases the Read more…
Scoliodon – Dogfish, Classification, and Characteristics Systemic Position of Scoliodon Phylum Chordate Subphylum Vertebrata Division Gnathostomata Superclass Pisces Order Squaliformes Family Carcharinidae Genus Scoliodon Species S. sorrakowah Habit and Habitat: The Scoliodons are widely distributed in India, Pacific West India, and the eastern coast of South America and Atlantic Read more…