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A modern semi-aquatic lizard: the marine iguana Modern squamates which have made their own adaptions to allow them to spend significant time in the ocean include marine iguanas and sea snakes . Sea snakes are extensively adapted to the marine environment, giving birth to live offspring and are largely incapable of terrestrial activity.
As aquatic tetrapods began their transition to land, several skeletal changes are thought to have occurred to allow for movement and respiration on land. Some adaptations required to adjust to non-aquatic life include the movement and use of alternating limbs, the use of pelvic appendages as sturdy propulsors, and the use of a solid surface at ...
Chroniosuchidae is a family of semi-aquatic tetrapods found in sediments from the upper Permian and the upper Triassic periods, most in Russia.They were generally rather large animals, with long jaws similar to those found in modern crocodiles, and probably lived a similar lifestyle as riverside piscivores and ambush predators.
In biology, being semi-aquatic refers to various macro organisms that live regularly in both aquatic and terrestrial environments. When referring to animals , the term describes those that actively spend part of their daily time in water (in which case they can also be called amphibious ), or land animals that have spent at least one life ...
Aquariums in the United States are full of life, color, and beauty. But the best aquariums don't just put some of the world's rarest, most intriguing, and majestical water-loving creatures within ...
This list of invertebrates of California lists invertebrate species (animals without a backbone) that are found in the US State of California. This list includes animals from the land, from freshwater, and from the ocean. The sequence of phyla is alphabetical. Species that are endemic to the State of California are indicated using an ...
Pages in category "Tetrapods" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. ...
Several groups of tetrapods, such as the reptillian snakes and mammalian cetaceans, have lost some or all of their limbs, and many tetrapods have returned to partially aquatic or (in the case of cetaceans and sirenians) fully aquatic lives. The tetrapods evolved from the lobe-finned fishes about 395 million years ago in the Devonian. [23]