Review and images by JimoAi; edited by bmathison1972
In the warm waters around the Galapagos Islands, a giant oceanic manta ray (Mobula birostris) swoops by, causing the nearby fish to flee due to the large size of the ray. She opens her large mouth to allow zooplankton to be collected and in turn, her gill rakers filter them, allowing seawater to be exhaled.
Review and images by JimoAi; edited by bmathison1972
Octopuses are remarkable animals: They have 3 hearts, blue blood, are able to squeeze into tiny spaces that are larger than its beak, change colour and sometimes texture to match their surroundings, and their most remarkable feature: intelligence. Compared to the other invertebrates, the octopus outsmarts all of them due to it having the largest brain-to-body ratio and the common octopus (Octopus vulgaris) has around half a billion neurons, two thirds of it are located in the 8 arms of the animal.
Review and images by JimoAi; edited by bmathison1972
Sharks are master hunters. They have inhabited the world’s oceans since the Silurian period and are still standing strong today, even though their population is dwindling due to human greed. They have a basic body plan of a streamlined body, having cartilage rather than bone for their skeletal structure, external gill slits on either sides of the head, and pectoral fins that are not fused to the head.
Review and images by JimoAi; edited by bmathison1972
In the warm seas of Australia’s Great Barrier Reef, a small part of the reef got dark as it is obscured by a diamond-shaped shadow, the entity which casted the shadow flaps her wing-like pectoral fins to propel herself through the water as she opens her mouth to feed on krill and zooplankton.
Review and images by JimoAi; edited by bmathison1972
Out of all the shark species, the most distinguishable group is probably the ones from the family Sphyrnidae, while all but the winghead shark of the genus Eusphyra are placed under the genus Sphyra, better known as the hammerhead sharks.
Review and images by Suspsy; edited by bmathison1972
“I frequently got on their backs, and then giving a few raps on the hinder part of their shells, they would rise up and walk away;—but I found it very difficult to keep my balance.” – Charles Darwin
Such was the experience of the legendary naturalist when he studied the giant tortoises of the Galápagos Islands in 1835.
Review and images by JimoAi; edited by bmathison1972
The surgeonfish are a group of fish that inhabits warm waters around coral reefs. They are mostly herbivorous and benifit the reefs by eating algae, which balances the coral and algal growth. They range in size from the small bristletooth tang which can get up to 15 cm to the largest surgeonfish species: the white margin unicornfish, which gets to 100 cm in length.
Review and images by JimoAi; edited by bmathison1972
The great white shark (Carcharodon carcharias) is probably the most famous fish on this planet. It has gained a fearsome reputation thanks to movies like Jaws, which portrays these beautiful animals as nothing more that blood-thirsty killers driven by the instinct to kill.
Review and images by JimoAi; edited by bmathison1972
The Zebrasoma tangs are a genus of surgeonfish known for their fins that erect like a sail, a spine at the end of the tail for defense like all other surgeonfishes, and features that make them similar to some butterflyfish species such as a disk shaped body and their long snout.
Review and images by JimoAi; edited by bmathison1972
Pufferfish and their close cousins, the porcupinefish, have a particular defense mechanism of swallowing water and thanks to their expandable stomach, it makes them look bigger, rounder and less appetizing for potential predators (One example in popular media is Mrs Puff puffing up when Spongebob fails his driving test for the X amount of times and going ‘Oh, Spongebob.
Review and images by callmejoe3; edited by bmathison1972
This blog managed to cover a wide variety of cetaceans before getting to today’s species, the killer whale (Orcinus orca). The public perception of killer whales has a rather dramatic history compared to most cetaceans. While revered by Indigenous cultures in North America, Europeans viewed killer whales as a malevolent nuisance and threat.
Review and images by JimoAi; edited by bmathison1972
Sea anemones paralyze their prey with their stinging tentacles with the aid of little harpoons. However, there are a few animals that use these stinging tentacles to their advantage, mainly to seek refuge from predators. But the most famous of these animals to take advantage of these stinging tentacles: the anemonefish.
Review and images by JimoAi; edited by bmathison1972
When it comes to dangerous sharks to humans, most people will always think about the great white, the tiger, or the bull shark. However, there is a runner up for the most dangerous shark that not many people have heard of, and it’s the oceanic whitetip shark (Carcharhinus longimanus).
Review and images by JimoAi; edited by bmathison1972
When it comes to chondrichthyes, the sharks always come up at the top of the popularity lists. In fact, whenever a toy company makes a fish figure, it’s always almost going to be a shark, usually a great white shark. Their cousins, the rays and chimaeras, are not so lucky in terms of treatment, and the luckiest non-shark chondrichthian to receive figure treatment is the largest of the rays and largest fish that isn’t a shark alive today, the manta ray.
Review and images by JimoAi; edited by bmathison1972
When it comes to reef fish, no species is as distinct and instantly recognizable as the Moorish idol (Zanclus cornutus). They are included on almost every ocean-related merchandise and media out there: from towels, utensils, coins and one even was a character in the 2003 Disney/Pixar movie Finding Nemo.
