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No because they have been alive for a very long time
What else can I help you with?
What organism has fossils that show it has changed little over time?
One example of an organism that has fossils showing little change over time is the horseshoe crab. Fossils of horseshoe crabs from millions of years ago closely resemble the horseshoe crabs we see today, indicating that their body plan has remained relatively unchanged. This phenomenon is often referred to as "living fossils."
Would horseshoe crabs be useful as an index fossils?
No, Index fossils are used to date certain rock layers where the fossil is found. So it's usefull when you can find a certain index fossil only in a small period of time. So you can get the most precise dating for the rock layer. Horseshoe crabs are known as a 'living fossil', the first fossils of horse shoe crabs are found 450 millions years ago. So when you find a fossil of a horse shoe crab in a rock or sediment, you can't say anything about the age of the rock.
What do horseshoe crabs eat?
Horseshoe crabs (family Limulidae) eat worms, mollusks, crustaceans, and small fish, and other bottom feeding organisms, and may scavenge on carcasses of fish and other animals.(Horseshoe crabs have similar characteristics, but are not true crustaceans.)
When did horseshoe crab originate?
Horseshoe crabs first appeared around 450 million years ago during the Ordovician period, making them one of the oldest living species on Earth.
Did any Paleozoic Era animal life survive?
Yes. If no animals survived from the Paleozoic into the mesozoic, then there would be no animals today.
What organism has fossils that show it has changed little over time?
One example of an organism that has fossils showing little change over time is the horseshoe crab. Fossils of horseshoe crabs from millions of years ago closely resemble the horseshoe crabs we see today, indicating that their body plan has remained relatively unchanged. This phenomenon is often referred to as "living fossils."
Do horseshoe crabs live in UK?
Although horseshoe crab fossils have been found in the UK, horseshoe crabs do not currently live in or around the UK. They are found in shallow salt water along the east coast of the US and in various parts of Asia.
Would horseshoe crabs be useful as an index fossils?
No, Index fossils are used to date certain rock layers where the fossil is found. So it's usefull when you can find a certain index fossil only in a small period of time. So you can get the most precise dating for the rock layer. Horseshoe crabs are known as a 'living fossil', the first fossils of horse shoe crabs are found 450 millions years ago. So when you find a fossil of a horse shoe crab in a rock or sediment, you can't say anything about the age of the rock.
Where are horseshoe crabs born?
Horseshoe crabs are born (hatch) in the ocean.
Are horseshoe crabs related to regular crabs?
no//////////////////horseshoe crabs are related to spiders and scorpions.. WEIRD RIGHT!!
What problems do horseshoe crabs have?
their horseshoe crabs so everyone makes fun of them
Are horseshoe crabs a problem?
no! horseshoe crabs have blue blood wich helps people. horseshoe crabs are colected then blood is taken from them then returned to the water.
What kind of climates do horseshoe crabs live in?
Horseshoe crabs normally live in a tropical climate.
Do horseshoe crabs eat coral?
No, because if they ate it they would choke and die
Where is the crabs Eyes located?
The eyes would be located somewhere on the horseshoe crab.
What are some types of crabs?
Some types of crabs I know of are fiddler crabs, hermit crabs and horseshoe crabs.
How does horseshoe crabs eat?
Horseshoes?
