Sundarban is the repository of marine, estuarine, coastal and freshwater Fishes . One is fascinated to discover the varied number of fishes like Sharks (Indian Dog Shark, Hammer-headed Shark, Sorrah Shark, Bull Shark, Zebra Shark), Eels, Electric Rays, Sucker Fish, Moon Fish, Puffer Fish etc preserved and displayed in aquariums and specimen jars. Some of the common edible and commercial fishes displayed like Hilsa , Setipinna , Anabas , Black Pomphret etc. are a feast for eyes.

The display of the ' amphibious mud-skipper' such as Periopthalmus and Boleopthalmus , typical of the Sundarban ecosystem are noteworthy.

The Amphibian group viz. Frogs and Toads like Common Indian Toad, Indian Bull Frog etc. have been preserved in specimen jars. These little queer looking creatures play a role in maintaining the ecological balance.

A nature lover and a curious visitor finds interest in the display of 'preserved eggs' of endangered species, like Estuarine Crocodile and Olive Ridley Turtle along with its hatchlings.

The display of skulls and bones of the Olive Ridley Turtle enriches the collection.

Sundarban has a rich variety of freshwater and sea turtles. The two vulnerable species Ganges Soft-shelled Turtle and Southern Soft-shelled Turtle have been kept in an aquarium for viewing.

Display of Poisonous and non-poisonous species of Snakes like Krait , Cobra , Tree snake , Water snake etc. with their cold glassy stare fascinate a visitor.

One gets the chance to follow the trail of footprints, left by the fearful beast - the Royal Bengal Tiger of Sundarban. No need to be afraid! The footprints are just a plaster cast of pugmarks showing male / female identifying features along with their approximate age profile.