The evolution of new organisms and their origins are discussed in Ted Daeschler and Neil Shubin’s Fossil Discovery and the Origin of Tetrapods. Tetrapod are species that have four limbs and originated from finned animals. According to Daeschler and Shubin, the oldest evidence of tetrapod is the 375 million years old Tikaalik roseae. This species helped aid in the discovery of how species transitioned from “fish-to-tetrapod.”
Aquatic animals and land animals have different characteristics due to their environment. If an aquatic animal were to transition to land it would need to get accustomed to a number of things. The most important one is that they need lungs instead of gills and a skeleton that can support their body weight. Aquatic animals
Aquatic animals and land animals have different characteristics due to their environment. If an aquatic animal were to transition to land it would need to get accustomed to a number of things. The most important one is that they need lungs instead of gills and a skeleton that can support their body weight. Aquatic animals