The Origin of Amphibians

24 “And God said, Let the earth bring forth the living creature after his kind, cattle, and creeping thing, and beast of the earth after his kind: and it was so.

25 And God made the beast of the earth after his kind, and cattle after their kind, and every thing that creepeth upon the earth after his kind: and God saw that it was good.”

Genesis 1:24-25

The "creeping thing" would include amphibians and reptiles, which live on land.  The Hebrew word: "remes" is from the root word: "ramas" which means "to glide, crawl, or move across the land with short steps."  These were created with all of the land animals on the 6th day of creation.

The Bible indicates that God created them each "after his kind."  The word "kind" means "species."  This indicates God created specific "kinds," and He created them each different from the other created "kinds."

The Evolutionary Hypothesis:

The first vertebrates were believed to be fish that are said to have appeared in the fossil record 530 million years ago. They are believed to have evolved into amphibians.

Key Changes Needed:

Developing legs, lungs, and a 3-chambered heart would be needed to allow fish to evolve into amphibians.

Similarities and Differences:

Similarities:

1. Both amphibians and fish are Vertebrates.

2. Both amphibians and fish are cold-blooded.

3. Both hatch from eggs.


That is where the similarities end.


Differences:

1. Body Coverings: Fish are covered in scales. Amphibians have no scales, but moist skin.


2. Respiration: Fish breath mainly through its gills, except for lungfishes. Amphibians breath mainly through lungs. Amphibians have permeable skin, which allows gas and molecules to pass through, but fish do not.


3. Metamorphosis: Amphibians undergo metamorphosis as they grown from young to adult, but fish do not undergo this radical change.


4. Eye Coverings: Amphibians have eyelids, but fish do not.


5. Hearing: Amphibians have ears, but fish do not. Limbless amphibians tunneling in wet and warm soil of the tropics have “seismic” hearing and perceive vibration of the ground by the lower jaw; the sound is transmitted to the inner ear by the skull bones. It is the same with some tailed amphibians. Looking closely at a frog, one can spot behind the eyes, on the sides of the head, small circles covered with membrane. This membrane is the eardrum.


Fish have ear parts inside their heads. They pick up sounds in the water through their bodies and in their internal ear, according to the National Wildlife Federation. Most fish also have sensitive receptors that form the lateral line system, which detects gentle currents and vibrations, and senses the motion of nearby fish and prey.


6. Habitat: Fish live in the water; amphibians may live in water or land.


7. Modes of Travel: Fish propel themselves through water with fins or float along underwater currents and do not have limbs. Amphibians do have limbs and can run, jump, climb or swim both on land and in water.

Amphibians are extremely different from fish.  So much so, that you would just about have to redesign them from the inside out, to turn one into another.  Those with a supernatural worldview believe God created them as separate "kinds," and intended for them to remain that way, except for speciation within their created "kind."