The early evolution of fish is unclear. It is thought that they evolved in the Cambrian Period (542 - 488 Ma). A primitive fish called Haikouichthys which is commonly recognised as one of the 1st fish to evolve lived around 530 million years ago.
In Bony Fish (Osteichthyes)
fish in tanks are magnified by the glass and the water.......... in my round fish bowl my guppies look huge
When tiger fish get sick, they may change color to appear darker or faded. This change in color can indicate stress or illness in these fish.
Bony fish first appeared on Earth around 420 million years ago during the Silurian period. They evolved from earlier jawless fish and quickly diversified into various forms, becoming one of the most successful groups of vertebrates in the oceans.
1957
Long before people. Since the fish were here first, there is no way to know EXACTLY when fish first appeared.
About 475 million years ago
In Bony Fish (Osteichthyes)
Coelacanth fish first appear in the fossil record about 410 million years ago.
The fish appear quite large.
Jawless fish - the earliest known vertebrate was the Myllokunmingia.
a fish appear to be bloated when seen in aquarium because of refraction of light
You need a rode first of all, then you wait and sooner or later your line will shake. Pull on the rode and a fish will appear in your hand. The more experienced your rod is the bigger fish youll catch.
Devonian period
It's the glass that does that
No, clown fish do not reproduce. They just appear out of thin air.
Perhaps, since they are compressed fish, their fins/bodies are flat and the appear to have "wings".