Tootfinder

Orcas and dolphins caught on video collaborating to hunt salmon
Orcas listen to dolphin echolocation, dolphins feed on salmon scraps: new study
https://www.cbc.ca/news/canada/british-columbia/video-research-orc…

Orcas and dolphins caught on video by researchers collaborating to forage, hunt salmon | CBC News
Researchers from Dalhousie University were trying to study how northern resident orcas find salmon to eat, but they ended up finding an unexpected symbiosis with another species — dolphins.

Symbiosis emergence and abandonment in nature: a coordination game approach
Simon A. Levin, Ted Loch-Temzelides
https://arxiv.org/abs/2510.08833 https://ar…

Symbiosis emergence and abandonment in nature: a coordination game approach
We employ an n-player coordination game to model mutualism emergence and abandonment. We illustrate our findings in the context of the host--host interactions among plants in plant-mycorrhizal fungi (MF) mutualisms. The coordination game payoff structure captures the insight that mutualistic strategies lead to robust advantages only after such "biological markets" reach a certain scale. The game gives rise to three types of Nash equilibria, which correspond to the states derived in studies of t…

🪸 Tree rings of the sea: How environmental conditions influence microalgae and coral communities
https://phys.org/news/2025-11-tree-sea-environmental-conditions-microalgae.html

Tree rings of the sea: How environmental conditions influence microalgae and coral communities
An international research team led by marine biologist Prof. Dr. Maren Ziegler from Justus Liebig University Giessen (JU) has developed an innovative method for reconstructing the past of corals and their symbiosis with algae by drilling into coral skeletons. The results, published in Global Change Biology, offer new insights into changes in symbiotic single-celled algae species that are crucial to the survival of coral reefs.

Stabilizing by steering: Enhancing bacterial motility by non-uniform diffusiophoresis
Viet Sang Doan, Ali Nikkhah, Sangwoo Shin
https://arxiv.org/abs/2509.25770 https://

Stabilizing by steering: Enhancing bacterial motility by non-uniform diffusiophoresis
Bacteria are often required to navigate across confined spaces to reach desired destinations in biological and environmental systems, allowing critical functions in host-microbe symbiosis, infection, drug delivery, soil ecology, and soil bioremediation. While the canonical run-and-tumble motility is effective in finding targets under confinement, it may not represent the most ideal strategy due to the continuous monitoring of environmental cues and stochastic recorrection of their paths. Here, …