Marine

Bigeye thresher

Alopias superciliosus

A characteristic feature of the Bigeye Thresher is the long upper caudal fin blade, which can …

Common thresher

Alopias vulpinus

The common thresher is characterized by a highly elongated upper caudal fin blade that can be …

Goblin shark

Mitsukurina owstoni

The body is spindle-shaped and the fins have an unusual rounded shape for sharks. The third …

Great sturgeon

Huso huso

Has typical characteristics of other sturgeons, such as an elongated body, a heterocercal tail, a partially …

Indian sand tiger

Carcharias tricuspidatus

Carcharias: From the Ancient Greek karkharías, shark, derived from kárkharos, sharp or jagged, referring to a …

Megalodon

Otodus megalodon

Latin Otodus megalodon or Carcharocles megalodon ← Greek μέγας "large" + ὀδούς "tooth". It existed in …

Megamouth shark

Megachasma pelagios

The most noticeable external feature that gives this shark its name is a large rounded head …

Pelagic thresher

Alopias pelagicus

The Pelagic Thrasher is characterized by a long upper caudal fin blade that can equal the …

Persian sturgeon

Huso persicus

Until recently, it was assigned to the genus Acipenser and called Acipenser persicus. However, in 2025, …

Salmon shark

Lamnа ditropis

They have a thick spindle-shaped body, a short conical snout (the distance from the tip of …

Shark, Basking

Cetorhinus maximus

The dark gray or slate-gray fish, transitioning to a paler hue, got its name from its …

Shark, Porbeagle

Lamna nasus

The porbeagle has a strong, cobalt blue body with a perfectly conical snout ending in a …

Shark, Sand Tiger

Carcharias taurus

It has a grayish-brown or tan coloration, with dark brown spots on the sides that increase …

Shark, Shortfin Mako

Isurus oxyrinchus

The snout is sharp, conical. There are 24-25 sharp lanceolate teeth on each jaw. The caudal …

Shark, White

Carcharodon carcharias

The white shark has a strong, heavy body that can be a dull slate-blue, grayish-brown, or …

Sharks, Thresher

Alopias species

Known by various names, the thresher shark is distinguished by its well-branched tail, whose upper blade …

Siberian sturgeon

Huso baerii

The Siberian sturgeon has a spindle-shaped body with several longitudinal rows of bumps. Its short, triangular …

Smalltooth sand tiger

Odontaspis ferox

The Smalltooth Sand Tiger has a stocky body with a long head and slightly flattened snout. …

Sturgeon, Atlantic

Acipenser oxyrinchus

The Atlantic sturgeon is dark brown or olive green with a white belly. The head is …

Sturgeon, White

Acipenser transmontanus

The adult white sturgeon has a moderately blunt snout, spines closer to the tip of the …