Do sharks growl? | AskScience Blog

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Sunday, May 19, 2019

Do sharks growl?

Do sharks growl?


Do sharks growl?

Posted: 18 May 2019 05:53 PM PDT

If not, do they vocalize or communicate in other ways? If so, what circumstances elicit growls, and do they vary across different situations?

submitted by /u/mmm_toasty
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Why do we think certain things/animals are ‘cute’? Is this evolutionarily beneficial or is it socially-learned?

Posted: 19 May 2019 04:36 AM PDT

Why do I look at cats and dogs and little baby creatures and get overwhelmed with this weird emotion where all I can do is think about how adorable they are? To me it seems useless in a survival context.

submitted by /u/BrokenEffect
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Can global warming and the next ice age cancel out?

Posted: 19 May 2019 05:13 AM PDT

In the Book „the Science of discworld " the author wrote „it would be ironic if our global warming crisis would prevent the next ice age".

Now to the question. How realistic is this? Are we overdue in the ice age cycle and even if so, are their reliable scientific sources on this scenario? On a side note: feel free to comment on this scenario.

P.S.: please say it can cancel out so I can have faith in our future :)

submitted by /u/CompactOwl
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Does electrical force cause some kind of distortion?

Posted: 18 May 2019 06:54 PM PDT

I don't really understand the concept of gravity being a space distortion instead of being a real force. So it makes me a little confused when I'm studying (highschool's level) electrical force. It seems soo close to gravity by it's formulas, so... Is it a distortion of something too? What are the similarities and differences, and why they seem similar?

submitted by /u/_spary_
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Could Leech Therapy be used to cure Herpes?

Posted: 19 May 2019 01:05 AM PDT

I was wondering if leech therapy could be used as a cure for herpes but I don't know enough about herpes or leech therapy. My theory is when a person is having an outbreak the virus leaves the spine and arises to the area that the person got infected from. From there the person would get the blisters that herpes is known for. So if you were to apply the leeches right before the outbreak the leeches would eat/drink the blood with the virus with it. With multiple treatments the person would be free of the virus.

A couple of problems I have spotted in this theory is that I don't know if herpes reproduces while dormant in the spine and if it does how quickly? If leeches actually drink/eat the blood or just filter it? I've tried to do research on both but didn't find any answers. Any input would be greatly appreciated.

submitted by /u/justanotherperson159
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What factors primarily determine if a shoreline is rocky or sandy?

Posted: 18 May 2019 10:59 AM PDT

How does squinting improve clarity of sight?

Posted: 18 May 2019 09:52 AM PDT

How does recondensation of liquid (during cavitation) produce shockwave?

Posted: 18 May 2019 08:41 AM PDT

Basic process of cavitation goes like this:

  1. lower pressure reduces saturation temperature of liquid, thereby vaporizing liquid
  2. After sometime, local pressure normalizes to surrounding pressure, thereby recondensating liquid
submitted by /u/divineflare1411
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When your body is a fighting a virus, is it fighting it in one place or all over your body?

Posted: 18 May 2019 07:24 AM PDT

Are battle lines drawn? Or is it total war, with guerrilla warfare?

Or is a battle metaphor unsuitable?

submitted by /u/JackRadikov
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How do we know what the insides of planets including earth look like?

Posted: 18 May 2019 03:12 AM PDT

How do they determine the Nutrition values of products?

Posted: 18 May 2019 05:26 AM PDT

Is it purely based on the number of units made from the mass ingredients they use to make that batch? Are individual units tested after they are produced to determine it? Does it have a margin of variance/error? Is every unit truly going to be the same?

submitted by /u/R0ot2U
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