Krish Sanghvi
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krishsanghvi11.bsky.social
Krish Sanghvi
@krishsanghvi11.bsky.social
Post doc in sexual selection, life history
Pinned
How to interpret sexual selection using Bateman gradients? When are these not informative & how should researchers identify, deal with confounded gradients? We simulate anisogamy & sperm competition to provide a guide for using Bateman gradients. Out in Evolution

academic.oup.com/evolut/advan...
Diagnosing confounded Bateman gradients
Abstract. The Bateman gradient is a fundamental metric of sexual selection, often interpreted as the fitness advantage individuals gain by increasing their
academic.oup.com
Reposted by Krish Sanghvi
🪶 New Research reveals that hormonal plasticity to food restriction is heritable in the house sparrow, Passer domesticus

📖 Read the full paper here! ➡️ buff.ly/BoWB3Dt
February 10, 2026 at 1:02 PM
Reposted by Krish Sanghvi
Scientists have identified specific neurons in female fruit flies that integrate sensory signals and drive behavioral changes after mating, offering new insights into how the brain regulates reproduction. doi.org/hbn5dr
Fruit fly study reveals how mating triggers behavioral changes in females
Researchers from The Universities of Manchester and Birmingham have identified the exact nerve cells in the brain that drive important behavioral changes in female fruit flies after they mate.
phys.org
February 10, 2026 at 1:53 PM
Reposted by Krish Sanghvi
Humans alter the daily timing of animal activity, potentially reshaping predator–prey interactions. This meta-analysis reveals that large predators overlap less with their prey, and large prey overlap more with their predators.

www.nature.com/articles/s41...
Predator-prey temporal niche partitioning under human disturbance: a meta-analysis - Nature Communications
Humans alter the daily timing of animal activity, potentially reshaping predator–prey interactions. This meta-analysis reveals that larger species tend to “lose” under human disturbance, with large pr...
www.nature.com
February 10, 2026 at 5:20 PM
Reposted by Krish Sanghvi
Territoriality, sociality and male weaponry shape horn investment in female bovids
#Competition #Mammal

doi.org/10.1093/behe...
February 10, 2026 at 5:51 PM
Reposted by Krish Sanghvi
Reposted by Krish Sanghvi
🦋 New research challenges the Temperature-Size Rule and highlights climate change’s potential to profoundly reshape butterfly life cycles, population dynamics, and ecological interactions.

📖 Read the full paper here ➡️ buff.ly/zFrpO7t
February 9, 2026 at 11:01 AM
Reposted by Krish Sanghvi
A newly identified iguanodontian dinosaur from China, Haolong dongi, displays unique hollow skin spikes, marking the first evidence of such structures in dinosaurs. doi.org/hbnx8x
A dinosaur with spikes exhibiting unprecedented properties discovered in China
Documented for 200 years, the Iguanodontia group is expanding with the discovery of a brand-new species, the first known to bear spikes with properties never before observed in dinosaurs.
phys.org
February 9, 2026 at 5:49 AM
Reposted by Krish Sanghvi
Really taken with Haolong dongi, out today from Jiandong Huang, Pascal Godefroit and team. Just submitted news article on it. An iguanodontian with abundant hollow spikes across the neck and body, projecting from among conventional basement scales, and with rows of plate-like scales along the tail.
February 6, 2026 at 3:55 PM
Reposted by Krish Sanghvi
Two-year-olds expect people to act in accordance with their social group identity, rather than their individual identity, when outgroup members are present, according to an experiment using fictional groups named “cheebas” and “moblins.” In PNAS: https://ow.ly/T5MQ50YapF6
February 6, 2026 at 9:00 PM
Reposted by Krish Sanghvi
This new #RSOS study of free-ranging red #deer on Scotland’s Isle of Rum found that females with stronger social bonds lived longer, produced more offspring, and had more offspring survive to two years of age than less connected individuals: doi.org/10.1098/rsos...
February 6, 2026 at 7:01 PM
Reposted by Krish Sanghvi
Evolutionarily conserved behavioral plasticity enables context-dependent mating in C. elegans

www.cell.com/current-biol...
Evolutionarily conserved behavioral plasticity enables context-dependent mating in C. elegans
Susoy and Samuel describe a new context-dependent behavior in C. elegans. When cultured on solid surfaces and in liquid, C. elegans males adopt different behavioral strategies—parallel and spiral mati...
www.cell.com
February 6, 2026 at 7:35 PM
Reposted by Krish Sanghvi
Cognitive decline in aging parasitoid wasps https://www.biorxiv.org/content/10.64898/2026.02.03.703543v1
February 6, 2026 at 12:45 AM
Reposted by Krish Sanghvi
New preprint from our big collaborative evolution experiment in 9 whole lakes in Alaska, written by McGill grad student @lucaseckert.bsky.social
www.biorxiv.org/content/10.6...
What happens if you put a mixture of multiple source populations together to complete & evolve in multiple new lakes?
February 5, 2026 at 8:41 PM
Reposted by Krish Sanghvi
Active sensing: How the rat moves its whiskers CurrentBiology
Active sensing: How the rat moves its whiskers
Humans and animals learn about the world through targeted and deliberate movement of the head, eyes, hands, and other sensors. A new study demonstrates how the geometry of the rat whisker system simplifies the motor control of active sensing.
dlvr.it
February 6, 2026 at 1:34 AM
Reposted by Krish Sanghvi
Hot off the press 🐣 Do birds have any idea of what their eggs look like? Contrary to our expectations, we show that barn swallows don't, nor do they learn it over time. Yet that doesn't stop them from successfully ejecting foreign eggs!
🔗 Read more here: doi.org/10.1098/rsbl... #OpenAccess
Recent breeding experience improves egg ejection behaviour
Abstract. Recognizing one’s own eggs is crucial for birds, especially for hosts of brood parasites that must identify and reject different-looking parasiti
doi.org
February 5, 2026 at 1:03 PM
Reposted by Krish Sanghvi
A new theme issue of #PhilTransB examines the mechanisms of learning from social interaction. Read articles for free: buff.ly/K8v43YM
February 5, 2026 at 2:19 PM
Reposted by Krish Sanghvi
🪿 Early-life stasis in partial seasonal migration is underpinned by among-cohort variation in migratory plasticity and selective disappearance

📖 Read the full paper here ➡️ buff.ly/9mleVea
February 5, 2026 at 1:01 PM
Reposted by Krish Sanghvi
Pregnancy loss is common in humans, and chromosomal abnormalities are the leading cause. Using genetic data from ~140,000 IVF embryos, we show that maternal variation in meiosis genes influences recombination and aneuploidy risk.

First authors: @saracarioscia.bsky.social & @aabiddanda.github.io
Common variation in meiosis genes shapes human recombination and aneuploidy - Nature
Analysis of data from pre-implantation genetic testing sheds light on the genetic basis of meiotic-origin aneuploidy, the leading cause of human pregnancy loss, identifying common genetic variants ass...
www.nature.com
January 21, 2026 at 9:14 PM
Reposted by Krish Sanghvi
Humans can use mouth-click echolocation to estimate object distances, demonstrating a form of spatial awareness similar to bats, though accuracy decreases with distance and less reflective materials. doi.org/hbnr2w
Humans show bat-like skills using mouth-click echolocation
It may sound like a scene from "Nosferatu," but research from the University of East Anglia shows that humans can use bat-like echolocation skills to judge the distance of objects.
medicalxpress.com
February 5, 2026 at 3:20 PM
Reposted by Krish Sanghvi
Why does life explore so few of the forms it could possibly take? Using fractal descriptors, this #scienceadvances paper shows that Earth’s biosphere clusters around simple shapes, reflecting deep evolutionary constraints. @artemyte.bsky.social @manlius.bsky.social www.science.org/doi/pdf/10.1...
January 11, 2026 at 1:23 PM
Reposted by Krish Sanghvi
"Superorganismal Anisogamy: a Comparative Test of an Extended Theory"
doi.org/10.32942/X23...
February 5, 2026 at 9:30 AM
Reposted by Krish Sanghvi
why do males defend territories in some species while pairs or family groups defend territories in others?

then-undergrad Shreyas Arashanapalli did a fantastic project to find out, analyzing 3177 playback experiments on 264 species

the best predictor?

latitude

academic.oup.com/evolut/advan...
February 4, 2026 at 6:21 PM
Reposted by Krish Sanghvi
📰Published📰Different incubation strategies lead to different embryonic metabolism and responses to temperature change🐦️

buff.ly/A2fHh93

🧪🌍
Different incubation strategies lead to different embryonic metabolism and responses to temperature change
Qian Hu, Yue Wang, Hui Wang, Yu Wang, Xin Xia, Jiliang Xu, Jianqiang Li This is a plain language summary of a Functional Ecology research article which can be found here Bird embryos commonly rely …
buff.ly
February 4, 2026 at 11:00 AM
Reposted by Krish Sanghvi
Long-term consequences of fostering: Single egg fostering leads to decreased survival in zebra finch females, but not in males bioRxivpreprint
Long-term consequences of fostering: Single egg fostering leads to decreased survival in zebra finch females, but not in males
Cross-Fostering, i.e., the exchange of eggs or hatchlings, is a widely used technique, to disentangle genetic from environmental effects or to manipulate the clutch size. In most bird species, this manipulation is easily accepted by the social parents, leading to the conclusion that fostering has no detrimental effect. Using a dataset of four cohorts (N=298) of zebra finches (Taeniopygia castanotis), in which we fostered routinely a single egg into another nest of zebra finches, we explored potential short- and long-time effects of fostering. Noteworthy, these experiments were not designed to test this hypothesis. The objective of the egg fostering experiments was to test for parental recognition (Caspers et al. 2017) and mate choice decisions (Golueke 2018). Consequently, the aim of the present study is purely explorative. Our study confirmed previous findings that fostering has no short-term effects on the morphology and growth rates of the chicks, neither in males nor in females. However, we found that fostering has a sex-specific long-term effect. Females originating from fostered eggs had a significantly reduced lifespan compared to those from non-fostered eggs. Conversely, the lifespan of fostered males was similar to that of non-fostered males. All birds were housed in large groups, experiencing the same conditions after nutritional independence (day 35). Therefore, we can only speculate that fostering might result in early developmental stress, which may affect the individual fitness of females later in life, ultimately leading to shorter lifespans.
dlvr.it
February 4, 2026 at 11:34 AM