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.
The Porifera (sponges) differ from other animals in that they do not exhibit true tissue development but rather have a cellular level of organisation. They are simple in body form, having a sac-like body which is perforated by many pores, yet complex at the cellular level having several types of cells.he Porifera (sponges) differ from other animals in that they do not exhibit true tissue development but rather have a cellular level of organisation. They are simple in body form, having a sac-like body which is perforated by many pores, yet complex at the cellular level having several types of cells.