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Mar
29
comment Why are killer whales found in the Gulf of Mexico smaller than ones found in the Pacific?
Has Bergmann's rule been suggested for the size disparity in Orca?
Mar
9
comment What is the minimum eye?
Comments are not for extended discussion; this conversation has been moved to chat.
Mar
9
comment What is the minimum eye?
Please continue this discussion in chat.
Feb
24
comment Is it possible to process electrical signals from the brain and interpret the results as exact thoughts?
I disagree to some extent. If you read "thought" as "intention to perform a motor action", then BrainGate (braingate2.org) has been reasonably successful.
Feb
13
comment What happens to our umbilical cord internally as we age?
Don't forget the urachus.
Feb
2
comment Why are fly not scared when landing on a monitor with changing graphics?
That's what I can't figure out. The OP describes things moving on the screen, which should activate the flicker effect.
Feb
2
comment Why are fly not scared when landing on a monitor with changing graphics?
I can't reconcile your answer with the well-studied optomotor response of fruit flies (e.g., ncbi.nlm.nih.gov/pmc/articles/PMC2846117), where in flies are tethered in place and their visual field is changed via LED screens, simulating movement. Photo here: depts.washington.edu/flyarama
Jan
29
comment why male penis not considered as cartilage?
@Remi.b Also see baculum: mapoflife.org/topics/…
Jan
29
comment Are boat-tailed grackles efficient flyers?
I added an image of the boat-tailed grackle for the unfamiliar.
Jan
24
comment Largest direct ancestor of humans
Except among the very recent ancestors of modern humans (and there is debate even there), generally we do not consider fossil species as direct ancestors. All fossil species are endpoints, tips of the phylogenetic tree.
Jan
22
comment What species of Cerapoda lived during the Jurassic?
I'm a little confused by your question. You ask specifically about Cerapoda, but your list includes several non-cerapod genera (Heterodontosaurus and Agilisaurus). Do you want only Cerapoda, or Ornithischia more broadly?
Jan
14
comment Safety of using industrial water for hand washing
You should ask this question of your university's Environmental Health and Safety department (or the equivalent). They will know the answer and are the only ones qualified to answer in your specific case.
Dec
10
comment fastq-dump using mkfifo to stream data
Can you give an example of the kind of piping you are trying to do? Frequently I just try something like bin1 infile | bin2 - and see what happens.
Dec
10
comment Long-term effects of antihistamines on mind and CNS
@GriffinEvo cogsci says it's off topic there too because of the personal medical orientation. I think it would be fine here or there (1) as separate questions and (2) as more general scientific questions as opposed to personal experience.
Dec
5
comment How do you accurately measure anguiliform (eel) locomotion?
Can you elaborate on why PIV is inadequate for studying anguilliform swimmers?
Nov
19
comment What are some difficulties animals had to overcome to reproduce on land?
Are you thinking of vertebrates specifically? Or animals more generally (including insects, mollusks, etc.)?
Nov
16
comment How to determine externally that a whale is a mammal?
@JeremyKemball Only milk and hairs make them mammals. Warm-blooded and live birth are present outside of mammals.
Nov
16
comment What proportion of salt in water would make it not dehydrate nor hydrate someone?
You are looking for physiological saline which is isotonic to most tissues. It is about 0.9% w/v, which equates to ~9g NaCl per liter water.
Nov
16
comment Why do mammalian red blood cells lack a nucleus?
The relationship between carrying more oxygen per cell and surface area does not follow logically to me. Enucleation will lead to increased surface area per unit volume, which will relatively increase the area for transport across the membrane. But aside from increasing Hb content or concentration, that won't lead to more oxygen carrying capacity.
Nov
8
comment A subtle test for color-blindness
This question appears to be off-topic because it has been posted to CogSci.