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.
Although the number of teeth varies within the different genera and species, they are usually undifferentiated and conical in shape, unlike the Porpoises whose teeth are more spade shaped. The beak length and width is highly variable between the different species and types of dolphins; some members have little or no differentiated beak while others demonstrate a prominent and distinct beak.