your+inner+fish+NLL

//**Your Inner Fish Article**//

(1) Describe at least three important PHYSICAL traits in humans that were found in fish first. · two eyes were found in fish first for binocular vision. · Two ears were found in fish first to localize sounds. · Twinned nostrils were found in fish first so you can follow your nose to scents/smells.

(2) Describe a SOCIAL trait in humans that was found in fish first. “Our inner fish extends beyond physicality. New research reveals that many fish display a wide range of surprisingly sophisticated social behaviors, pursuing interpersonal, interfacial relationships that seem almost embarrassingly familiar.”

(3) What is an African cichlid and what behavior do they have that resembles social behavior in humans. Describe. “Dr. Taborsky and his colleagues have studied the social lives of African cichlids, colorful freshwater fish from Lake Tanganyika. The cichlids live in relatively large groups of 10 or so individuals, a dominant breeding pair and a retinue of adult and adolescent helpers. The helpers share in all duties, Dr. Taborsky said. They defend territory, they help keep the nests tidy and they clean, fan and oxygenate the breeding pair’s eggs. When the eggs hatch into larvae, the helpers take up the babies in their mouths for cleaning — all the while forgoing their own breeding efforts.” ( 4) Why is it interesting that female guppies may go through menopause? “Riverside, has discovered that female guppies go through a kind of menopause, surviving well beyond their reproductive life span, a finding that may bear on the evolution of menopause among women.”

(5) Which genes in humans shifted color during migration from one part of the world to another and also shift in color in fish? Genes responsible for skin pigmentation shifted color during migration from one part of the world to another and also shift the color in fish.

(6) What is the significance to human biology that fish are the oldest group of vertebrates? They have had a long time to experiment with body plans and strategies.

(7) Competition and predation among fish species led to the evolution of two important physical traits found in humans. What are these two traits and how did competition and predation spur their evolution? Regarding the NPR interview with the author of Your Inner Fish, Neil Shubin Jaws and teeth allowed smaller fish to eat bigger fish.

(8) What is unusual about the Tiktaalik? Animal that is 4 to 9 ft long. It has scales like a fish, it has a flat head with eyes on top, it has a neck, has elements that correspond to our shoulders, palms, etc. It is part fish part man.

(9) What bones in the "arm" of a Tiktaalik are also found in human arms? Humorous, elbow joint, wrist bones.

(10) Explain why a hiccup is a relic of our fish ancestors? Creatures that breathe with both lungs breathe with the form of a hiccup. We use the same rudimentary shoulders and upper body strength when we hiccup.