Describe the observed behavioral and phenotypic plasticity...

Describe the observed behavioral and phenotypic plasticity in Death Valley pupfishes in the genus Cyprinodon. What factors have apparently shaped their recent evolutionary history, and how does the system in their brain function that transduces environmental information?

Transcript

00:01 Pup fish pup fish is a kind of fish and it belongs to the genus which is called as the cyprinodon so this is a kind of fish which in turn can live in extreme regions which have extreme temperature like for example it can live at a temperature which is very high as like that of the forty four degrees c or it can also live in a temperature which is as low as zero degree c also so it has its ability to live in these extreme temperature environment that is extreme temperature ranges and this in turn lives in a particular region that is said to be the spring system so this intern is found to be its habitat so the behavior that is associated with it is that though it can live in this extreme temperature ranges it in turn is found to be a found in very low number and it is in turn considered to be one of the endemic species and needs and can become endangered if it is left unattended.

01:01 So this is one of the characteristic feature that is possessed by this pup fish besides other species which live in the thermal spring system.

01:11 So there is one such feature which is in turn measured with regard to this pup fish which is intern said to be the ctm.

01:19 Here ctm stands for critical thermal maximum that is the maximum temperature which can allow the survival of the species.

01:27 That is it can survive the extreme temperature in turn is measured.

01:30 With regard to this particular feature and this describes the nature of a particular species and also the type of the particular species and also its susceptibility and also that acclimation temperature.

01:43 So this in turn describes the extreme environment that can be supported by this type of pupfish that is found in the thermal spring system...

Question

Describe the observed behavioral and phenotypic plasticity in Death Valley pupfishes in the genus Cyprinodon. What factors have apparently shaped their recent evolutionary history, and how does the system in their brain function that transduces environmental information?

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