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  1. Oct 12, 2022 · This protein is built around copper instead of iron. When that copper is oxygenated, it is blue! So, some animals do have blue blood. But humans and other mammals always have red blood. Image of circulatory model by Bryan Brandenburg via Wikimedia Commons.

  2. Jan 6, 2010 · Cones require a lot more light and they are used to see color. We have three types of cones: blue, green, and red. The human eye only has about 6 million cones. Many of these are packed into the fovea, a small pit in the back of the eye that helps with the sharpness or detail of images. Other animals have different numbers of each cell type ...

  3. May 12, 2017 · Grade Level: 11. A couple's children can have almost any eye color, even if it does not match those of either parent. Currently it is thought that eye color is determined by about six genes, so you can imagine how inheritance of eye color becomes very complicated. There are some characteristics of various plants or animals that are determined ...

  4. May 19, 2017 · The blood of blister beetles is unusual in that it contains the chemical cantharidin, a very toxic, nasty chemical that protects the beetle from some animals that would kill and eat the insect. Males manufacture their own cantharidin in large amounts but females cannot make their own protective chemicals. Females do not need to do so because ...

  5. Dec 15, 2009 · In our studio today is Dr. Peter Vukusic, who's one of the speakers at a very special conference about iridescence. This is the first in a series of annual meetings established by the School of Life Sciences called "Frontiers in Life Sciences." Dr. Vukusic is a physicist interested in how things in nature, such as butterflies and birds, produce ...

  6. Jul 20, 2010 · Punnett squares are a useful tool for predicting what the offspring will look like when mating plants or animals. Reginald Crundall Punnett, a mathematician, came up with these in 1905, long after Mendel's experiments. Let's take a look at how Punnet squares work using the yellow and green peas example from Mendel’s garden experiments.

  7. Nov 25, 2013 · Poison Dart Frogs: Don't Eat Them! Two poison dart frogs with bright colors. Poison dart frogs are extremely poisonous to protect themselves from birds and other predators. Click to enlarge and for more details. Poison dart frogs are bright and colorful amphibians found in Central and South America. Their name also tells part of the story.

  8. Dec 16, 2009 · In turn, there's the other type, which are the cones. The cones are sensitive to exactly the types of waves of light--the red, oranges, yellows, green, blue, indigo, violet--and so they are truly the color capturing cells. We have particular types of cones, in our eyes, which allow us to see three main types of color.

  9. Length: 32 in. (81 cm ) A common species on inland lakes, rivers and ponds, it is also found in coastal habitats. It is regularly seen roosting near the water on trees, snags, beaches and rocky cliffs with its wings hanging open to dry in the sun. The cormorant has adaptations to the eyes to see underwater, and it uses its fully webbed feet to ...

  10. Is blood blue? Answer >> Be Part of Ask A Biologist. By volunteering, or simply sending us feedback on the ...

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