Earth & Environmental Sciences
kin selection
100%
altruism
91%
household
50%
food
41%
kinship
21%
fitness
15%
aid
14%
cooperation
13%
food aid
12%
food intake
10%
familiarity
9%
energy production
7%
gene
5%
distribution
2%
Arts & Humanities
Reciprocal Altruism
92%
Reservation
66%
Household
53%
Food
42%
Kinship
20%
Fitness
15%
Contingency
14%
Paraguay
9%
Intake
9%
Altruism
8%
Familiarity
7%
Proximity
7%
Recipient
7%
Discrimination
6%
Gene
6%
Energy
5%
Causes
4%
Agriculture & Biology
altruism
86%
kin selection
82%
households
57%
kinship
18%
food distribution programs
12%
food aid
11%
Paraguay
9%
food intake
6%
energy
4%
genes
2%
Medicine & Life Sciences
Altruism
87%
Psychology Transfer
71%
Food
42%
Pain
35%
Paraguay
12%
Psychology Recognition
6%
Eating
5%
Genes
3%
Social Sciences
altruism
68%
food
42%
kinship
20%
fitness
19%
contingency
19%
Paraguay
13%
union and employers' representatives
13%
energy production
13%
recipient
8%
discrimination
7%
cause
5%
trend
4%
evidence
4%