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Elisabeth DeWald

I've been a public school teacher for 26 years. My major was history, but along the way, picked up minors in math, biology, zoology, and other life sciences. My whole life has been on one side of the desk or the other. Husband and Dad were both MDs so science and medicine was a natural for me. My dad once told me that I knew more medicine than most doctors. I can easily answer almost any life science question, most history questions, and lots of medical questions.

Dana Krempels

I can answer questions about evolutionary mechanisms and theory, including genetic drift, mutation, natural selection, etc. I also can clear up misconceptions about evolution as it's sometimes talked about by those not well-versed in the subject (e.g., some politicians and many religious fundamentalists).

Recent Answers

2017-02-07 Birth disabilities in Pets.:

Sure....because people can care for them.  I work in rescue, and we have blind dogs that are pets in homes. Blind cats that are pets, even blind horses.... Those who adopted those compromised dogs,cats

2016-12-19 Homosexuality:

Dear Tebe,    The genetic and environmental (including developmental factors while a fetus is still connected to his mother) interactions that result in homosexuality are still not fully understood, as

2016-12-05 Help:

You asked:    "QUESTION: Hello mam  Sorry for those above sentence , mam can u give ur mobile number mam , i want u to explain in watsapp, if u are on watsapp please mam I promise u I will not misuse ur

2016-12-01 Help:

All cells have cell membranes, and the membranes are flexible.     So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.     That's nice for plants, because

2016-11-14 human appearences:

Dear MA,    There is a common misconception that evolution occurs because of "felt need", meaning that organisms that do not use a particular structure will, over generations, see the gradual loss of that

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