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Biology Letters
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December 7, 2007
Marrying women 15 years younger maximized men's evolutionary fitness in historical Sami
Samuli Helle, Virpi Lummaa, Jukka Jokela
Biology Letters
|
November 29, 2007
Temperature-related birth sex ratio bias in historical Sami: warm years bring more sons
Samuli Helle, Samuli Helama, Jukka Jokela
Biology Letters
|
May 10, 2023
Differential grandparental investment when maternal grandmothers are living versus deceased
Antti O Tanskanen, Samuli Helle, Mirkka Danielsbacka
European Journal of Epidemiology
|
May 27, 2026
The decade of double-trouble: live birth and stillbirth sex ratio variation in Finland during the COVID-19 pandemic and Russia's attack on Ukraine
Samuli Helle, Antti O Tanskanen, Mirkka Danielsbacka
Plos One
|
April 12, 2012
Hand asymmetry does not relate to key life history traits in post-menopausal contemporary Finnish women
Stefan Van Dongen, Ellen Sprengers, Samuli Helle
Physiology & Behavior
|
December 5, 2009
Maternal corticosterone but not testosterone level is associated with the ratio of second-to-fourth digit length (2D:4D) in field vole offspring (Microtus agrestis)
Thomas Lilley, Toni Laaksonen, Otso Huitu, et al.
Biology Letters
|
February 5, 2010
Fluctuating feather asymmetry in relation to corticosterone levels is sex-dependent in Eurasian treecreeper (Certhia familiaris) nestlings
Samuli Helle, Petri Suorsa, Esa Huhta, et al.
Journal of Chemical Ecology
|
May 7, 2010
Carotenoid composition of invertebrates consumed by two insectivorous bird species
Tapio Eeva, Samuli Helle, Juha-Pekka Salminen, et al.
Scientific Reports
|
February 27, 2019
Males have more aggressive and less sociable personalities than females in semi-captive Asian elephants
Martin W Seltmann, Samuli Helle, Win Htut, et al.
Proceedings. Biological Sciences
|
January 27, 2015
Culled males, infant mortality and reproductive success in a pre-industrial Finnish population
Tim A Bruckner, Samuli Helle, Elisabeth Bolund, et al.
Page
of 6
Search research articles
Search
Showing results (21-30 of 55) with videos related to
Sort By:
Page
of 6
Biology Letters
|
December 7, 2007
Marrying women 15 years younger maximized men's evolutionary fitness in historical Sami
Samuli Helle, Virpi Lummaa, Jukka Jokela
Biology Letters
|
November 29, 2007
Temperature-related birth sex ratio bias in historical Sami: warm years bring more sons
Samuli Helle, Samuli Helama, Jukka Jokela
Biology Letters
|
May 10, 2023
Differential grandparental investment when maternal grandmothers are living versus deceased
Antti O Tanskanen, Samuli Helle, Mirkka Danielsbacka
European Journal of Epidemiology
|
May 27, 2026
The decade of double-trouble: live birth and stillbirth sex ratio variation in Finland during the COVID-19 pandemic and Russia's attack on Ukraine
Samuli Helle, Antti O Tanskanen, Mirkka Danielsbacka
Plos One
|
April 12, 2012
Hand asymmetry does not relate to key life history traits in post-menopausal contemporary Finnish women
Stefan Van Dongen, Ellen Sprengers, Samuli Helle
Physiology & Behavior
|
December 5, 2009
Maternal corticosterone but not testosterone level is associated with the ratio of second-to-fourth digit length (2D:4D) in field vole offspring (Microtus agrestis)
Thomas Lilley, Toni Laaksonen, Otso Huitu, et al.
Biology Letters
|
February 5, 2010
Fluctuating feather asymmetry in relation to corticosterone levels is sex-dependent in Eurasian treecreeper (Certhia familiaris) nestlings
Samuli Helle, Petri Suorsa, Esa Huhta, et al.
Journal of Chemical Ecology
|
May 7, 2010
Carotenoid composition of invertebrates consumed by two insectivorous bird species
Tapio Eeva, Samuli Helle, Juha-Pekka Salminen, et al.
Scientific Reports
|
February 27, 2019
Males have more aggressive and less sociable personalities than females in semi-captive Asian elephants
Martin W Seltmann, Samuli Helle, Win Htut, et al.
Proceedings. Biological Sciences
|
January 27, 2015
Culled males, infant mortality and reproductive success in a pre-industrial Finnish population
Tim A Bruckner, Samuli Helle, Elisabeth Bolund, et al.
Page
of 6