Great tit nestlings. Photo: Wikimedia commons

Fig. 2 from the article: indices of innate immune function measured in male and female great tit nestlings at the age of 14 days

New paper: in great tits, male nestlings grow bigger and show stronger immune defenses than females, showing fast growth doesn’t compromise immunity, likely thanks to priority access to food from parents.

➡️ vist.ly/4u2yv

#ornithology #birds #ecoimmunology #dimorphism #development 🪶

The scheme of measurements in C. granulatus. EL—Elytra length: distance between the posterior end of scutellum and the terminus of right elytron (if the right elytron is not intact, the left one may be used). EW—Elytra width: distance between the anterior-distal corners of the elytra. PL—Pronotum length: measured along the central furrow of the pronotum. PW—Pronotum width: distance between the two posterior corners. HL—Head length: distance between the labrum and the juncture of the occiput and postgena. DE—Dorsally measured interocular distance between inner margins.

#LiteratureNotice Ferracini et al. Sexual Size Dimorphism Depends Drastically on Environment: The Case Study in Ground Beetles doi.org/10.3390/inse... #Beetle #Beetles #dimorphism #groundbeetle

New research in #RESEcolEnt

Larval development under continuous and dynamic #LightPollution alters sexual #dimorphism in a #moth species
doi.org/10.1111/een.70053

#ALAN #Morphology #Agrotis
@sheborg.bsky.social @robwilsonmncn.bsky.social @callomac.bsky.social @wileyeco.bsky.social

Check out today's great #ArticleinPress, Transcriptome Profiling Suggest Molecular Sexual #Dimorphism in Lumbosacral Dorsal Root Ganglia and Sex-specific Mechanisms Underlying Visceral Pain (Sathish Kumar Yesupatham et al. CU Anschutz Department of Surgery):

https://ow.ly/LG0L50XAIAX

#SweatBees #Bees in #Flowers.

#SweatBees #Bees in #Flowers.

#SweatBees #Bees in #Flowers.

#SweatBees #Bees in #Flowers.
#Dimorphism
F are #MetallicGreen top to bottom.
M have #MetallicGreen top and yellow bottom. The flower is a #BeeBar. F collect pollen and M hover and pounce.

We explore #dimorphism across sensory modalities (visual and auditory systems, gustation and olfaction) and find, for example, a putative functional “love spot” involving male-specific neurons. 8/10

#amphibiansofinstagram #leaffrog #solomonislandleaffrog #frogs #amphibians #froggy #didyouknow #frogfacts #amphibians #dimorphism #biology #comic #webcomic #infographic #info

Fig. 1 CO2 production for four species of dung beetle showing sexual and male dimorphism. (A) CO2 production for morphs of each species not accounting for beetle mass or activity. Boxplots correspond to the first and third quartiles, and whiskers extend to the most extreme data value within 1.5 times the interquartile range. Jittered points show data for individual beetles. (B) Expected CO2 production from beetles of a given morph with average mass for each species and average activity across species. Points show least squares means and 95% CIs around the means. Letter labels indicate significant differences.

IOB
"...To test this hypothesis, we examined metabolic rates of morphs using flow-through respirometry to record CO2 output..."
Testing for Differences in #Metabolism Among Females and Dimorphic Males of Four Dung #Beetle Species
Killeffer et al
doi.org/10.1093/iob/...
#insects #bugs #dimorphism

IOB's latest!
Testing for Differences in #Metabolism Among Females and Dimorphic Males of Four Dung #Beetle Species (Coloeoptera: Scarabaeinae)
Killeffer, Fleming, Padukone, Duerr, Reed, Merizalde-Toro, Marshall, Celi, Sheldon
doi.org/10.1093/iob/...
#dimorphism #energetics #morphology #insects

#dimorphism caught on camera: both colors of the female Eastern Tiger Swallowtail (Papilio glaucus) butterfly. Img left, the yellow morph, and img right, a "dark morph" female, identifiable with a shadow of her 'tiger stripes' visible on the underside. Both on Cirsium altissimum (Tall thistle)

Were Our Ancestors More Like Gorillas Than Humans? New Study Reveals Shocking Size Gap Fossils reveal extreme sexual dimorphism in early hominins. The findings reshape views of their social behavior. A recent study has revealed that males of some of humanity’s earliest ancestors were much larger than their female counterparts. This marked difference in body size, found in both Aust

Something interesting on extreme sex size #dimorphism in early #hominins -- somewhat like #gorillas

scitechdaily.com/were-our-ancestors-more-...

From this image we learn that Ms Swift is into #dimorphism.

Here's something different. I wanted to try my hand at illustrating some of the cool frog facts I've been yapping about. Enjoy!

#leaffrog #solomonislandleaffrog #frogs #amphibians #froggy #didyouknow #frogfacts #amphibians #dimorphism #biology #comic #webcomic #infographic #info

In many frogs, the female is larger than the male.

Here, Nerves (left) is dwarfed by his mate, Tubba (right). This difference in size is because the female is the one who lays the eggs.

#leaffrog #solomonislandleaffrog #frogs #amphibians #didyouknow #frogfacts #amphibians #dimorphism #biology

I always want to get a pic of #Rare #Javan #Banteng ( #Bos javanicus ), which has sexual #dimorphism that you can barely see in the picture. I'm so grateful you see them in Alas Purwo National #Park in open Savanah. They're listed as #Critically #Endangered by #IUCN due to habitat loss and hunting.

Euharpia minuta A. 2019. Female.

Euharpia minuta A. 2019. Male.

#sedimentarylands
Harpy part 1.
The first creature I wanted to share is the #harpy.
To make a harpy believable and as scientifically accurate as possible, I chose a barn #owl as a base, since some people described it as #humanoid in ancient times.

#creaturedesign #specevo #bird #dimorphism #harpies

Meaning Behind the Word: Dimorphism Dimorphism refers to the occurrence of two distinct forms within a single species. This phenomenon can manifest in various aspects of living organisms. Sexual Dimorphism In b...

Meaning Behind the Word: Dimorphism #Word #Meaning #Behind #Dimorphism #Occurrence #Species #Sexual #Plant #Animal #Examples #Advantages #Evolutionary #Strategies #Life

Shark Swimming Seagrass And The Ecosystem GIF ALT: Shark Swimming Seagrass And The Ecosystem GIF

IOB
#SharkWeek2024 -
Now in advanced!
#Sharks violate Rensch's rule for sexual size #dimorphism
Joel H Gayford, & Phillip C Sternes
doi.org/10.1093/iob/...

#science #biology

🌎👵⚤ Excited to share ->
Multi-organ map of the human immune system across age, sex and ethnicity

From 29M cells and 12K samples from @humancellatlas
, tissue-specific #Ageing programs, sexual #dimorphism, #Ethnical diversity in #Immunotherapy targets

biorxiv.org/content/10.1...

National Geographic Explore National Geographic. A world leader in geography, cartography and exploration.

For many species, females are larger than males, sometimes significantly #dimorphism #evolution news.nationalgeographic.com/2018/03/animals-sizes-se... @NatGeo

A slightly different #ChristmasTree with a Crowned Eagle pair. size #dimorphism in #Raptors with the female being larger than the male.

x.com/urbanraptors/s…

Identification of factors involved in #dimorphism and #pathogenicity of #Zymoseptoria tritici

journals.plos.org/plosone/articl…