Theo C.M. Bakker, PhD

Our paper  Bakker TCM, Hiermes M, Müller B, Martin S, Rennison DJ, Rick IP: "Adaptive variation in opsin expression of sticklebacks from...

Starting with the November issue, BES has a new cover image. ​ ​ A female great fruit-eating bat ( Artibeus lituratus ) roosting with...

Starting with the January 2024 issue, BES has a new cover image. ​ The brittle star Ophiocoma echinata lacks a central nervous system but...

James Traniello and I wrote an editorial on the restricted use of ChatGPT and other GenAI models in preparing manuscripts.

Starting with the May issue, BES has a new cover image. ​ Female redfronted lemurs (Eulemur rufifrons) permanently evict closely related...

Starting with the November issue, BES has a new cover image. ​ Male grass wrens (Cistothorus platensis) do not adjust parental care to...

We (Rebeca Rosengaus, James Traniello and Theo Bakker) just published the introduction to the Topical Collection “Sociality and Disease“...

Honey bees (Apis mellifera) minimize the spread of disease by altruistic self-exile and the physical eviction of immune-challenged...

Starting with the August issue, BES has a new cover image showing an humpback whale. A surface active humpback whale (Megaptera...

the second paper in Current Zoology came out and looked at UVA-based shoaling and mate preferences of lab-bred fishes from two photic...

Starting with the January issue, BES has a new cover image showing Angolan giraffes. King (in the middle), an adult male desert-dwelling...

new paper online in Current Zoology. Males from tea-stained habitats were redder than males from clear-water habitats on North Uist,...

I just published a paper in Hydrobiologia based on 25-year-old stickleback data. The topic is still very up-to-date. Males preferred to...

Denis Meuthen's paper is now online in Oecologia. His father, the haematologist Ingo Meuthen, did the blood-cell counts. Alarm...

Starting with the June issue, BES has a new cover image showing a katydid . Katydid Copiphora brevirostris (female) from the Neotropical...

Behavioral Ecology and Sociobiology will now require data deposition and strongly recommends to supplement source codes for publications...

Read our plea for scientific practices and reasoning to guide the course of actions necessary for health security throughout the pandemic.

I am proud to announce that Simon Vitt performed an excellent PhD defense and wrote an excellent PhD thesis entitled “The influence of...

Starting with the January issue, BES has a new cover image showing Carter, an adult male chimpanzee (Pan troglodytes) of the Ngogo...

Congratulations to Simon Vitt. The last chapter of his PhD-dissertation entitled "Differential investment in pre- and post-mating male...