What makes fireflies glow?

dickite
draculin
luciferin
spermine
Luciferin is a generic term for the light-emitting compound found in organisms that generate bioluminescence. Luciferins typically undergo an enzyme-catalysed oxidation and the resulting excited state intermediate emits light upon decaying to its ground state.
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Very interesting!
reach: rather globalbiologychemistryinsectslight

Answers by country

dickite
draculin
luciferin
spermine
answers
flagAustralia
8%
8%
75%
7%
82
flagRepublic of Ireland
4%
4%
72%
12%
25
flagthe Netherlands
17%
5%
70%
5%
17
flagthe United States
7%
8%
69%
12%
345
flagSingapore
18%
4%
68%
9%
22
flagGreece
10%
5%
68%
15%
19
flagGhana
16%
8%
66%
0%
24
flagFrance
16%
16%
66%
0%
18
flagthe United Arab Emirates
11%
16%
66%
5%
18
flagCanada
10%
4%
63%
17%
47
flagIndia
7%
17%
59%
13%
790
flagthe United Kingdom
14%
12%
57%
14%
248
flagPoland
16%
10%
56%
15%
4411
flagSwitzerland
9%
25%
55%
7%
54
flagMalaysia
5%
23%
55%
11%
34
flagAustria
16%
23%
47%
11%
109
flagthe Philippines
11%
15%
46%
23%
76
flagGermany
15%
27%
44%
11%
605
flagPakistan
7%
27%
41%
23%
81
flagNigeria
9%
31%
40%
14%
122