Aquatic and Marine Biology

Ichthyophobia is the correct term for fear of fish, derived from Greek 'ichthys' meaning fish. The distractors are: Myrmecophobia (ants), Galeophobia (sharks - can also mean fish but less specific), Ophidiophobia (snakes).

Shark corneas are remarkably similar to human corneas in structure and refractive properties, making them useful for transplantation research. Other marine mammals like dolphins, whales, and seals have different corneal adaptations.

Dolphins have a permanently curved jawline that gives them a natural smiling appearance, which is why they are often described as always smiling. This is an anatomical feature, not an emotional expression. Fish (A) do not have this feature, and crocodiles (C) have quite different jaw structures.

The Dead Sea has a salt content of approximately 34%, making it nearly 10 times saltier than ocean water. This extreme salinity creates an environment where fish and most aquatic life cannot survive.

An octopus has three hearts - two branchial hearts that pump blood through the gills, and one systemic heart that pumps blood to the rest of the body. This is a unique feature of their circulatory system.

The TCS Siruseri campus in Chennai has a distinctive butterfly-shaped architecture. This unique design is visible in aerial views and is a notable feature of the IT park. The other shapes (spider, dinosaur, fish) are not associated with this campus layout.

Fish do have blood, though it's different from mammalian blood. Fish blood contains red blood cells with hemoglobin, white blood cells, and platelets, though the ratios and some functions differ.

The statement is false because goldfish are NOT the only animals with this visual capability. Many species including bees, birds, reindeer, and some fish can see UV light, while certain snakes and fish can detect infrared. The claimed answer 'False' is correct.

Starfish are capable of everting their cardiac stomach outside of their bodies to digest food externally before pulling it back inside. This allows them to consume prey larger than their mouths, such as bivalves.

Intrauterine cannibalship (embryonic cannibalism) occurs in sand tiger sharks, not tiger sharks. While the phenomenon described is real for some shark species, attributing it specifically to tiger sharks is incorrect.

A towel is the object that gets wetter as it dries something else (like a person after a shower). The riddle plays on the dual meaning of 'dries' as an action performed by the object.

A blue hole is a large underwater sinkhole or cave formation, typically formed in limestone or carbonate rock. They get their name from the deep blue color of the water inside compared to the surrounding shallower waters. The Great Blue Hole in Belize is a famous example.

The statement is true. Dolphins are mammals (they breathe air, nurse their young with milk, and are warm-blooded). They can typically stay underwater for 8-10 minutes routinely, with some species capable of holding breath up to 15 minutes. The 15-minute upper limit is factually correct for some species.

This is an exact duplicate of question 59972. Dolphins are mammals, and while 15 minutes is at the upper end of their breath-holding capability (typical dives are 8-10 minutes), some species can reach 15 minutes, making the statement factually correct.