Biology Weekly Newsletter - Wednesday, July 29, 2015

Top new questions this week: Identify ~6-7mm long green creature Here is the creature I found on the glass lid of my light bulb. I guess they are attracted to light as they all concentrate on the light source. I live in Hong Kong. The brown things aren't moving ... entomology species-identification   asked by y chung 12 votes answered by Ilan 5 votes There aren't any animals like hornets that hunt large prey (like a rabbit, or even up to a deer), right? Why not? There aren't any eusocial animals (hives of wasps, ants, termites, etc) that hunt large prey, are there? I'm thinking prey in the size range of, say, a rabbit, or even a deer. I can't see a rabbit ... evolution predation   asked by Owen_R 11 votes answered by Jack Aidley 10 votes Does your iris color have an effect on your vision? I've always wondered if having different iris colors, (eye colors) may have any advantages or disadvantages on ones vision. Specifically regarding the effects of light. Personally, I have troubles ... eyes light iris   asked by AstroMax 8 votes answered by Ilan 5 votes Can we change our dopamine baseline levels? Can we change our dopamine baseline levels? High dopamine levels improve alertness, problem solving, but may also cause anxiety and aggression. I've read that smiling and laughing, eating certain ... neuroscience brain   asked by Yvonne Liew 8 votes answered by AliceD 5 votes Are mitochondria transferable between cell types, individuals and species? I'm curious about what happens when you insert organelles from a cell into another. In particular, mitochondria. Take two cells from your own body. Somehow extract a mitochondria from one cell and ... cell-biology mitochondria   asked by Voldemort 8 votes answered by WYSIWYG 8 votes What bacteria do unborn babies contain? This Scientific American article states that "[human] infestation [by bacteria] begins at birth". This would suggest that unborn babies are free from any bacteria. However, if the mother catches a ... human-biology bacteriology reproduction   asked by James Newton 7 votes answered by anongoodnurse 5 votes Database of Geographic Range of Species Is there a database of organisms which would contain their queriable geographic location? I would need to perform a rather simple query, such as Animals of <Location>, where Location is some ... ecology database biodiversity species-distribution   asked by Jan Drábek 6 votes answered by fileunderwater 6 votes Greatest hits from previous weeks: Can humans perceive sounds above 20 kHz? In the never-ending debate raging in the audiophile community about sound quality and what humans can or cannot hear, it is very very very very incredibly often cited that the upper-limit of the ... hearing human-ear ultrasound   asked by landroni 28 votes answered by AliceD 36 votes Does DNA have the equivalent of IF-statements, WHILE loops, or function calls? How about GOTO? Does DNA have anything like IF-statements, GOTO-jumps, or WHILE loops? In software development, these constructs have the following functions: IF-statements: An IF statement executes the code in a ... dna bioinformatics systems-biology   asked by coderworks 62 votes answered by WYSIWYG 53 votes Can you answer these? What form of reproduction did the first land animals use? What form of reproduction did the first animals on land use*? Were they hermaphrodites, or did they have male and female sexes? [Is there a proper term for sexual separation in a species?] Were any ... evolution sex   asked by dsollen 2 votes What is this flower? I was in Germany recently, and I saw again a flower that I'd only ever encountered before at Meijer Gardens. It's interesting to me because I'd never seen a flower with color variation in only the ... botany flowers   asked by user17019 1 vote Two different Leucochloridium infected snails - different species? In the last three days, I have found two snails infected by some species of Leucochloridium. I found them in my garden in the south-west of Sweden. Now I'm wondering if they are the same species or ... species-identification parasitology   asked by picapica 1 vote

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