Creatures of the BioShock series

The BioShock series has many animals seen in game, from angler fish to giant squids. These can be seen outside of Rapture roaming the ocean. Others are seen around Columbia. Some of these can be interacted with.

Angler Fish
These species of fish can be seen roaming the abyss around Rapture. One can be seen before being eaten by a shark in BioShock 2 when roaming outside of Rapture. Many seem to live in the trench where Fontaine's Department Store now rests. Also, in the multiplayer map Point Prometheus, a poster suggests an extremely large angler fish roams outside Rapture (it is unknown if this is real or an angler fish affected by ADAM). An exhibit for a very large one can be seen in the Proving Grounds.

Barnacle
These anthropods can be seen encrusted outside in the sea amongst the seabed and buildings, and inside areas that have been flooded.

Bee
Bees can be found in the Silverwing Apiary at the Farmer's Market. They would have played an vital role in the reproduction of plant life in Arcadia and other vegetation in Rapture. Swarms of these insects can also be summoned by using the Insect Swarm Plasmid.

Beetle and Cockroach
Some of these insects can be seen in the vents of Fontaine's that Elizabeth may crawl through.

Butterfly
Butterflies can be seen in BioShock 2 at The Sinclair Deluxe in Pauper's Drop, in the lobby and in Room 212.

Blue Morpho Butterflies are seen by Little Sisters, hovering over 'Angels' rich in ADAM.

Cat
Corpses of cats can be found all over the city. As of Bioshock 2, there have been no record of cats seen alive in Rapture in the series. There is an Easter Egg in Imago Fine Arts, in which a frozen cat corpse can be found with the name "Schrödinger".

Oscar Calraca had to have many of his felines smuggled in to the city as Ryan would not allow him bring them in for some unknown reason (Possibly due to having them brought in from the surface). One of them was called Mr. Boots who grew an ADAM addiction which caused Oscar to kill him when he tried to steal some of Oscar's ADAM.

Coral
Many types of coral of various types and sizes can be seen out in the sea on the seabed, on buildings and other stuctures. They can also be seen inside in areas that have been flooded or have been flooded previously. Contact with ADAM, as with much of the sealife and plantlife in Rapture, has caused mutations in the coral, affecting things like their coloration and size.

Crab
These small, red crustaceans have built their residencies all over the ocean floor. Several of these can be seen on the way to Fontaine's Department Store. Ever since the building sunk to the bottom of the trench, crabs have also taken up residence inside of it as well.

Dog
A puppy can be heard in the Audio Diary - Mind Control Test where she is killed by a young Jack. They are mentioned in other audio logs, character dialogue, scattered canned dog foods, and several advertisements for them can be seen in the Farmer's Market. A Pekingese is mentioned in an audio log regarding the Radar Range.

Elephant
In a cut concept for Bioshock, the Rapture Zoo was said to have housed an elephant.

Firefly
Fireflies can be seen in jars with the presents left for Subject Delta from Eleanor Lamb in BioShock 2. They can be released by smashing the jar.

Fish
Many types of fish are seen in and around Rapture often swimming in schools, such as in Neptune's Bounty or as food. An unknown species of fish can be seen when no-clipping inside the lighthouse at the beginning of the first game, this mysterious fish has see through skin and can only be seen by cheating. Also, a mutated fish with two heads can be seen in the multiplayer map of Point Prometheus.

Fly
Flies are seen flying over food in the Cafeteria in Inner Persephone in BioShock 2.

Giant Squid
These massive members of the mollusk family can be seen in BioShock and Bioshock 2. In BioShock, one is seen when entering the city of Rapture for the first time via Bathysphere. Later in the game, one dead giant squid can be seen in a display case in the Memorial Museum. In BioShock 2, it is first seen when stepping into the ocean (seen after a shark attacks an angler fish).

Gulper Eel
A type of eel can normally be found at the bottom of the ocean in Bioshock 2. It is also seen on a poster under the name of "Monster Eel".

Horse
Horse racing was mentioned in passing dialogue by an acquaintance of Booker DeWitt in Market Street.

Jellyfish
Jellyfish, or "jellies", are aquatic creatures with an umbrella-shaped body, and long, trailing, venomous tentacles. A small group of these can be seen in Burial at Sea, on the way to Fontaine's Department Store. They can also be seen in BioShock 2 when traveling out into the ocean. Some small jellyfish were kept in tanks outside of The Watched Clock.

Octopus
Another member of the Mollusk phylum. An octopus can be seen in Burial at Sea, swimming outside Market Street.

Rabbit
Albino Rabbits can be found in Cohen's where they are allowed to hop along the club as they please. Rabbits were symbolic to Sander Cohen, and their physical attributes, such as their ears, were incorporated into many of his works.

Rat
These rodents can be seen scurrying past Elizabeth as she traverses through air vents.

Reptile
A reptile house was mentioned by one of Atlas' followers holding out in Test-Drive. It may hint at the Rapture Zoo, content that was ultimately removed by the time of the first BioShock's release.

Sea Horse
Sea horses are a unique breed of fish. Large sea horses can be seen on posters in the multiplayer map of Point Prometheus.

Sea Slug
These mollusks can be seen whenever you harvest a Little Sister.

In BioShock 2, these can also found in the ocean outside of Rapture.

In Minerva's Den the player can find Sea Slugs in glass jars and out in the sea.

In Burial at Sea - Episode 1,  a couple of slugs can be seen outside on a windowframe near The Watched Clock on High Street. A man and a woman observe and discuss them.

Shark
Two types of sharks can be seen around Rapture. A medium-sized shark that bears a resemblance to a Great White shark, which is seen in the main menu and after Siren Alley is flooded. The other type is a massive unknown shark that has no dorsal fin, this type of shark is seen eating an angler fish at the beginning of the game.

Spider
Cobwebs can be found around the city due to the lack of cleaning being done.

Starfish
These five-armed creatures can be found all over the sea bed, they are also often seen on buildings and attached to the outside of windows. Subject Sigma removes a starfish from his helmet after coming to.

Turtle
Sea turtles can be seen around Rapture, most notably through the viewing windows in the elevators. Also, inside the Memorial museum, a large skeleton of a sea turtle can be seen.

Whale
An aquatic mammal normally found swimming around Rapture. Jack's eye is caught by the sight of a whale swimming by as he enters Rapture. Two whales similar to the from the first game can be seen in from the windows of High street and Market street. A skeleton of a whale can also be seen in the Memorial Museum in Point Prometheus.

Whale Shark
This type of shark can be seen swimming in the distance amongst the towering buildings from Market Street.

Bee
Jeremiah Fink's personal credo has him believe that the bee is most admirable, because it spends its time working hard (he also believes that his workers should do the same). Also, a bee manages to get inside the elevator leading down to the Hall of Heroes, and Elizabeth simply opens a Tear to gently shoo it away.

Beetle and Cockroach
Clusters of these small insects are seen skittering around, often in really filthy areas.

Crow and Raven
Large black birds usually affiliated with death. These birds can be seen all around Columbia, mostly in the Order of the Raven HQ, where they are worshipped as idols. Crows have been seen to be able to be controlled or produced by the Murder of Crows Vigor; this could be the answer why so many crows can be seen around Columbia (possibly because Columbians overuse Murder of Crows). The Columbian Crows are aggressive birds that attack live prey.

Dog
Dogs were used by Fink to create a bonding mechanism between Songbird and Elizabeth. All of these experiments failed, but the corpses of the dogs can still be found in Fink's old laboratory.

Fly
Flies are often attracted to stenches that humans would normally find offensive. In the Raven headquarters, feasts of vegetables and fruit have been laid out and left to rot, attracting the pesky insects.

Gorilla
A gorilla can be found in Burial at Sea - Episode 2 in Fink's old lab. It had been undergoing a series of "bonding tests" using a wire mother.

Horse
Horses were originally used to pull carts and machinery during Columbia's earlier years. However, the horses were in danger of falling off the floating islands when spooked by weather and loud noises, so they were replaced by Automated Stallions.

Hummingbird
Tiny birds seen hovering around bushes full of flowers. "Hummers", as they are sometimes called, use their long, narrow beaks to sip nectar from flowers. William R. Foreman even made a short film featuring hummingbirds.

Pigeon
Pigeons are often seen flying around the Rooftops of Comstock Center. Getting near them will cause them to fly away (as with most other birds).

Rat
Since the people of Shantytown were suffering sadly under the toil of Fink, they sometimes resorted to eating these rodents to keep from starving. Rats can be seen on dinner plates in the slums.

Seagull
These sea birds can be seen around the Battleship Bay area. It is possible these birds could have migrated accidentally to Columbia or they were brought to Columbia on purpose. On the station near the entrance to Soldier's Field Welcome Center, a bunch of seagulls are hanging around a chair with a Shotgun—implying that they are hunted for sport.

Behind the Scenes

 * One of the few pieces of information known about the removed zoo level in BioShock was that it would have contained an Elephant. However, since this area was removed from the final version of the game, it is unsure if Elephants do, in fact, live in the city.
 * Elizabeth's dream sequence of Paris at the start of Burial at Sea - Episode 2 is the first time in the series that live cats and dogs have been seen.