Tiger salamanders' markings are variable throughout their extensive range, but the most common marking resembles the vertically striped pattern of their mammalian namesake.
Dolphin vs. Porpoise. Dolphins and porpoises are cetaceans â marine mammals â that are closely related to whales. Dolphins belong to the Delphinidae family and are up to 30 feet long. Porpoises, belonging to the Phocoenidae family, are smaller and stouter, with other anatomical differences. Though both animals are very intelligent, dolphins are deemed to be more social and live in larger, more stable groups.
Portrait of a Bottlenose Dolphin. As members of the whale family, dolphins are fully aquatic mammals that spend their entire lives underwater. They only need to breath air from the surface once every 5 to 10 minutes using the blow hole at the top of their heads which is like a large nostril. There are almost forty different species of dolphins with the killer whale being the largest. The bottlenose dolphin is the species of Flipper fame that we are most familiar with, and the species that is regularly referred to as simply dolphin. The term dolphin is not synonymous with porpoise. Porpoises are six species within the dolphin family differentiated by their flat teeth.