You shouldn’t keep them with: Any small, timid species of fish Other rainbow sharks Red-tailed sharks Bala sharks Black sharks Rainbowfish need a tank that’s a minimum of 55 gallons and 48 ...

The giant extinct shark species known as the megalodon has captured the interest of scientists and the general public alike, ...

Despite this, they are a docile, non-aggressive species, known to attack humans only when bothered first. Sand tiger sharks are brownish ... oblong tail with a notched, upper lobe that is ...

trunk and tail measurements from 145 present-day shark species and 20 extinct species. Based on the average proportions of the three body parts relative to one another, it was estimated that the ...