Nature

  Zoological Profile, Taxonomy, and Marine Conservation of Dermochelys coriacea (Leatherback Sea Turtle) The Leatherback Sea Turtle ( Dermochelys coriacea ), known in Sinhala as Dara Kesbawa (දරා කැස්බෑවා) or Thala Kesbawa (තලා කැස්බෑවා) and in Tamil as Ezhuthu Aamai (எழுத்து ஆமை) or Thozh Aamai (தோல் ஆமை), holds the distinction of being the largest of all living turtles and the fourth-heaviest modern reptile on Earth, behind only three species of large crocodilians. Extremely distinct from all other marine turtles inhabiting Sri Lankan waters, Dermochelys coriacea is the sole surviving species within the genus Dermochelys and the ancient family Dermochelyidae . Unlike hard-shelled sea turtles, the Leatherback lacks a bony carapace and keratinous scutes, featuring instead a flexible, hydrodynamic shell composed of skin, oil-saturated tissue, and thousands of tiny embedded bony plates (osteoderms). 1. Taxonomy and Deep Evolutionary Lineage While all other living marine turt...

Zoological Profile, Taxonomy, and Natural History of Elephas maximus maximus (Sri Lankan Elephant) The Sri Lankan elephant ( Elephas maximus maximus ) holds a venerated position in the ecological, cultural, and historical landscape of Sri Lanka. Known locally in Sinhala as Aliya (අලියා) or Atha (ඇතා - denoting a tusker), and in Tamil as Yanei (யானை), this majestic megaherbivore is the largest of the three recognized subspecies of the Asian elephant. As a keystone species, Elephas maximus maximus shapes island forest ecosystems through seed dispersal, habitat modification, and nutrient cycling. However, expanding human settlements and agricultural land conversion have restricted its range primarily to dry-zone wilderness areas, making its study and conservation a top priority. 1. Scientific Taxonomy and Nomenclature Botanically and zoologically, the Sri Lankan elephant represents the nominate subspecies of the Asian elephant, first classified by Carl Linnaeus in 1758. Kingdom:...

Zoological Profile, Taxonomy, and Behavioral Ecology of Bubalus arnee (Sri Lankan Wild Water Buffalo) The wild water buffalo ( Bubalus arnee / Bubalus bubalis ), known in Sinhala as Wal Mee-Haraka (වල් මී හරකා), Mee-Haraka (මී හරකා), or Wal-Meema (වල් මීමා), and in Tamil as Kadu-Madu (காட்டு மாடு) or Kadu-Errume (காட்டு எருமை), is one of the largest and most powerful native bovine herbivores inhabiting the tropical dry-zone ecosystems of Sri Lanka. As an essential megaherbivore of wetland marshes, riverine floodplains, and grass-dominated plains, the wild buffalo acts as a key ecological driver. By grazing on coarse marsh vegetation and wallowing in muddy water-holes, wild buffaloes engineer aquatic habitats, maintain open waterways, and create ideal conditions for migratory waterbirds and sympatric wildlife. 1. Scientific Taxonomy and Evolutionary Nomenclature Botanically and zoologically, the wild water buffalo represents the wild ancestor from which domestic water buffal...