User uhoh

4

35

votes

2

answers

3k

views

Is C. elegans always observed with precisely 302 neurons? Are there ever individual viable exceptions?

May 25 at 0:26 tsttst 1,140

3

25

votes

1

answer

3k

views

Bird brain-eating Mantis - how does it crack the skull?

entomology predation

Sep 24 '17 at 13:01 uhoh 1,349

4

21

votes

1

answer

3k

views

How did the largest/longest dinosaurs hold their head and necks up?

muscles bio-mechanics dinosaurs

Aug 10 '17 at 18:08 iayork 10.3k

2

13

votes

1

answer

7k

views

Can plants produce oxygen at night (without light)?

biochemistry plant-physiology photosynthesis

May 9 at 8:24 Community♦ 1

4

13

votes

1

answer

528

views

Are two colors (red + blue) necessary for LED grow lights, or would either color be sufficient?

botany plant-physiology photosynthesis light

Jul 22 '17 at 6:31 Emily G. Silvia 1

10

votes

1

answer

298

views

What kind of tree is this — why do its huge leaves change shape and “grow fingers”?

species-identification trees morphology

Dec 11 '17 at 18:26 Bryan Hanson 576

7

votes

1

answer

101

views

What are these four large snails doing?

behaviour gastropod

Jul 3 at 10:38 David 12.1k

7

votes

1

answer

137

views

What kind of big bird is this seen walking around Taipei?

species-identification ornithology

Jun 14 at 14:12 Johnny 1,200

6

votes

1

answer

101

views

Is this a hawk, or an eagle?

species-identification ornithology

Jul 4 at 13:51 Community♦ 1

6

votes

3

answers

212

views

DNA as a digital storage medium; sequences algorithmically avoided for safety reasons (or should be)?

biochemistry dna dna-sequencing safety

Jul 20 '17 at 7:23 uhoh 1,349

1

6

votes

1

answer

99

views

Don't understand figures in this citizen-science mosquito ID project

entomology statistics data infectious-diseases

May 19 '17 at 0:15 canadianer 14.8k

6

votes

1

answer

563

views

Are four-leaf clovers mutations, developmental errors, or something more complicated?

genetics botany mutations variant

Mar 31 '17 at 14:46 uhoh 1,349

3

6

votes

2

answers

272

views

Bacteria trapped in crystal inclusions found 'alive' after 50,000 years - what were they eating all that time?

biochemistry bacteriology chemosynthesis

Feb 25 '17 at 9:41 another 'Homo sapien' 13.3k

5

votes

1

answer

72

views

What are the sources of molecular hydrogen in human breath?

biochemistry respiration breathing

Jan 7 at 14:41 Jan 1,391

5

votes

0

answers

129

views

Could being exposed to excess UV in the arctic lead to a human eye color change? If so, what is the mechanism?

human-eye uv melanin

Aug 25 at 15:26 samuel owino 101

5

votes

2

answers

164

views

Melatonin production, sleep, and “cyan light”; how might this finding be possible?

human-biology neuroscience vision sleep color

Aug 3 at 20:12 De Novo 6,748

2

5

votes

1

answer

85

views

What are these little leaves growing on these other leaves? (plant growing near the ocean)

species-identification reproduction seeds

May 20 at 13:04 NatWH 827

1

5

votes

2

answers

288

views

Why do soil bacteria produce nitrous oxide as a result of anhydrous ammonia fertilizer application?

bacteriology soil nitrogen-cycle

Oct 11 '17 at 17:09 Istrel 161

4

votes

1

answer

272

views

How exactly do birds get drunk eating fruit? Fermentation should be anaerobic

ornithology behaviour fermentation

Jan 22 at 3:04 Bryan Krause 19k

4

votes

1

answer

68

views

Do these large spiders in Taiwan belong to different species?

species-identification arachnology

Jan 21 at 6:02 Community♦ 1

4

votes

1

answer

83

views

Is this tall, white tree in central Australia a kind of Eucalyptus?

species-identification

Nov 12 at 22:09 Aussie Paul 21

4

votes

1

answer

1k

views

Species identification; clusters of big plump red bugs in Taipei

species-identification entomology

Aug 7 at 21:00 user45329 1

4

votes

1

answer

549

views

Animals with substantial five-fold symmetry besides starfish? Any land animals?

evolution anatomy movement

Jan 17 '18 at 1:12 Will 1

1

4

votes

1

answer

125

views

Why are “itch signals” transmitted so slowly from the skin to the human brain?

neuroscience neurophysiology central-nervous-system peripheral-nervous-system

Nov 22 '17 at 4:37 theforestecologist 16k

3

votes

0

answers

47

views

How can we usually “trust a fart” not to be liquid or solid?

human-anatomy digestive-system sensation

Feb 11 at 6:05 uhoh 1,349

1

3

votes

2

answers

81

views

What causes “ear rumbling”?

physiology hearing

Jan 10 at 6:18 Laurel 185

3

votes

1

answer

85

views

Is this a large bee? (species identification)

species-identification

Jul 2 at 3:59 JayCkat 2,731

3

votes

1

answer

476

views

What is the definition of an opioid, beyond that it's something that stimulates opioid receptors?

neuroscience pharmacology neurotransmitter

Aug 11 '17 at 13:51 Alan Boyd 21.8k

3

votes

1

answer

1k

views

How do the three mechanisms of the 1000X improved “new” vancomycin work together?

molecular-biology antibiotics

May 31 '17 at 8:17 Chris♦ 40.5k

3

votes

1

answer

71

views

Was 14,000+ year old DNA “laying around in cave dirt” protected from degradation, or is it just naturally this robust?

dna

Apr 29 '17 at 3:01 John 7,771

Stack Exchange Network

current community

your communities

more stack exchange communities

Next privilege

Next badge

54 Questions

Is C. elegans always observed with precisely 302 neurons? Are there ever individual viable exceptions?

Bird brain-eating Mantis - how does it crack the skull?

How did the largest/longest dinosaurs hold their head and necks up?

Can plants produce oxygen at night (without light)?

Are two colors (red + blue) necessary for LED grow lights, or would either color be sufficient?

What kind of tree is this — why do its huge leaves change shape and “grow fingers”?

What are these four large snails doing?

What kind of big bird is this seen walking around Taipei?

Is this a hawk, or an eagle?

DNA as a digital storage medium; sequences algorithmically avoided for safety reasons (or should be)?

Don't understand figures in this citizen-science mosquito ID project

Are four-leaf clovers mutations, developmental errors, or something more complicated?

Bacteria trapped in crystal inclusions found 'alive' after 50,000 years - what were they eating all that time?

What are the sources of molecular hydrogen in human breath?

Could being exposed to excess UV in the arctic lead to a human eye color change? If so, what is the mechanism?

Melatonin production, sleep, and “cyan light”; how might this finding be possible?

What are these little leaves growing on these other leaves? (plant growing near the ocean)

Why do soil bacteria produce nitrous oxide as a result of anhydrous ammonia fertilizer application?

How exactly do birds get drunk eating fruit? Fermentation should be anaerobic

Do these large spiders in Taiwan belong to different species?

Is this tall, white tree in central Australia a kind of Eucalyptus?

Species identification; clusters of big plump red bugs in Taipei

Animals with substantial five-fold symmetry besides starfish? Any land animals?

Why are “itch signals” transmitted so slowly from the skin to the human brain?

How can we usually “trust a fart” not to be liquid or solid?

What causes “ear rumbling”?

Is this a large bee? (species identification)

What is the definition of an opioid, beyond that it's something that stimulates opioid receptors?

How do the three mechanisms of the 1000X improved “new” vancomycin work together?

Was 14,000+ year old DNA “laying around in cave dirt” protected from degradation, or is it just naturally this robust?