Great Hammerhead Shark vs Zebra Danio

Sphyrna mokarran в сравнении с Danio rerio

Taxonomy & Classification

Характеристика	Great Hammerhead Shark	Zebra Danio
Научное название	Sphyrna mokarran	Danio rerio
Отряд	Carcharhiniformes	Cypriniformes
Семейство	Sphyrnidae	Danionidae
Conservation Status	Critically Endangered	Least Concern

Physical Traits

Характеристика	Great Hammerhead Shark	Zebra Danio
Максимальная длина	610,0 cm	5,0 cm
Максимальный вес	580,0 kg	0,001 kg
Окраска	Brownish-gray to olive-gray dorsal surface with a clean countershaded white belly; no distinct patterning; first dorsal fin is tall and strongly falcate; pelvic fin tips dusky.	Silver to pale gold body with five continuous horizontal royal-blue stripes running from gill to tail tip, including through the fins; belly silvery-white; fins clear with blue-gold striping.

Habitat & Environment

Характеристика	Great Hammerhead Shark	Zebra Danio
Тип воды	Saltwater	Freshwater
Диапазон глубин	1-300m	—
Ареал обитания	Circumtropical in warm coastal and offshore waters of the Atlantic, Indian, and Pacific oceans. Concentrates around coral reefs, continental shelf edges, and deep-water drop-offs; population …	Native to the Ganges and Brahmaputra river basins of Bangladesh, India, Nepal, and Myanmar. Inhabits fast-flowing hill streams, rice paddies, and shallow ponds across the …
Среда обитания	Neritic	Fast-flowing, clear mountain streams of the Ganges-Brahmaputra region, India and Bangladesh. Clean, well-oxygenated, shallow water with sandy and gravelly substrate (18-26°C). Lab model organism.

Aquarium Suitability

Характеристика	Great Hammerhead Shark	Zebra Danio
Минимальный объём аквариума	—	40 L
Температура	—	18-24
Диапазон pH	—	6.0-8.0
Уровень сложности содержания	—	Easy
Темперамент	—	Peaceful

Cuisine & Edibility

Great Hammerhead Shark

Critically Endangered — consumption strongly discouraged. Fins are historically traded but the species faces severe population decline; eating this fish is ecologically irresponsible.

Zebra Danio

Not consumed — a hardy ornamental aquarium fish notable for its horizontal blue-silver stripes and active schooling behavior; also a widely used laboratory model organism.

Species Overview

Great Hammerhead Shark

The great hammerhead is the largest of the nine hammerhead shark species. Its distinctive cephalofoil (hammer-shaped head) houses an array of electroreceptors that allow it to detect stingrays buried beneath the sand.

Zebra Danio

The zebrafish is a small cyprinid native to South Asia's freshwater streams. Its distinctive blue-and-gold horizontal stripes and hardy nature make it a popular aquarium fish. It is also the most widely used vertebrate model organism in genetic research.