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i think the change in the stickleback is because like they got bigger predators and they like ate the stickleback fish and they probably died from being old

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I think that stickleback has changed in the last 20,000 years because fished live in water they can get food easily and escape from their predators.

A question I have is what type of predators eat them.

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1.  I think what changed was how fast they swam to get food or swim away from predators.
2. Are they dangerous?

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1. I think the change in the stickleback population was that there was a different environment 20,000 years ago then their is today.

2. What predators try to eat them ?

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1. I think the change in the stickleback population was over time they developed a better way to get away from predators.

2.  How big do sticklebacks get?

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1. I think what caused the fish to change is to escape from predators and to catch their food easily.

2. In what part of the world does it live in?

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1 I think there was a big event that caused it to develop the pelvis and it needed it to survive maybe that event changed their enviroment and the pelvis helped it out.I think that it lost it pelvies because the enviroment changed again

2 How big do the stickleback grow?

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i think it changed because its of there predators or cause of catching prey

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1 What I think happened to the stickleback fish is they evolved from there previous form but I think they were caused by predators that ate all of them.

2 Where did the fish go instinct

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1.  I think the fish changed because it can help the fish catch food for itself so the fish can keep living and so it can swim away from other fish who want to eat it

2. how big or small is the fish

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What I think could explain the change in fossil lake is by the way the fishes live under water because the water could have had something dangerous for them.

A question I have is how big is the oldest fish.

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1. What I think happens is that they evolve over time when they are used to their environment they start to change and that is how they start to change over the 20,000 years. There environment is probably  a little different so that how to get used to it and start to evolve.

2. A question I have is why does it take over 20,0000 years for them to start to change?

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I think it change because its getting older, for example people when they are young looks different the way they look today.

I have one question will it change in three years or is it gonna stay the same.

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I think that what may have changed them is the food they eat. I also think that there more predators that would move faster. Also its probably just becasue they got old.

One question i have is why are the stickleback fish named stickleback? who created the name stickleback?

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1. I think that the sudden change in stickleback population could have been caused by possible predators and or prey. I think that the increase in fish with pelvic bones could have been caused due to higher levels of predator, or difficulty catching prey. The pelvic bones could have been a way to increase the fish's speed and agility. The decrease could be explained due to lower levels of predators and or easier to catch prey in the area, therefore, the pelvic bones would have little to no use, and possibly took up too much energy.

2. How big are the fish? Where were they located? Herbivores or Carnivores?

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1. I think the change in the stickleback population in the fossil lake can be explained by, the need to swim faster from predators. The pelvis (i think) lets you move the bottom half of your body more freely, so you can walk, or swim faster.

2. How big is the fish, and is it still alive?

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I think it change because its getting older, for example people when they are young looks different the way they look today.

One question I have is will they look different in more years.

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1. What do you think could explain the change in the stickleback population in the fossil lake over the 20,000 years shown?

2. What questions do you have about the stickleback fish?