#scienceblr

[that-dumbass-rabbit]

[sixquarksinatrenchcoat]

I'm not a mad scientist, I'm just a disappointed scientist

[todropscience]

KILLER WHALES CRAFT KELP TOOLS FOR SOCIAL GROOMING

In a remarkable discovery, researchers have documented wild Resident killer whale (Orcinus orca ater) manufacturing and using tools in a social context. Observed in the Salish Sea from April to July 2024, members of the endangered southern resident population were seen detaching short lengths of bull kelp (Nereocystis luetkeana) and using them during tactile interactions with a partner, a behavior the authors call allokelping. This behaviour differs from playful kelp draping commonly seen in cetaceans, whales in this study deliberately fashioned kelp segments using their teeth, positioned them between their bodies, and coordinated their movements to roll the kelp across one another’s skin.

This represents a potential case of tool-assisted allogrooming, a behaviour rarely documented in non-primates and never before in marine mammals. Statistical analyses suggest that allokelping may serve both hygienic and affiliative functions, being more common among close kin and individuals of similar age, and possibly linked to skin molting. The whales’ use of their entire bodies, rather than limbs, to manipulate the kelp, and the mutual benefit of the interaction, make this a unique form of tool use in the animal kingdom. If confirmed, it would expand our understanding of cetacean intelligence, culture, and the evolutionary roots of cooperation.

Photo: Orca grasps a bull kelp stalk by the holdfast end and detaches a short stipe segment for use in allokelping.

Reference (Open Access): Weiss et al., 2025. Manufacture and use of allogrooming tools by wild killer whales. Current Biology.

[h0bg0blin-meat]

Here's the link to the video

👏 SAY 👏 IT 👏 LOUDER 👏

[nerd-mcgeek]

computer science is a super misleading name btw

it's neither abt "computers" nor "science"

it's just a twisted, twisted form of maths

[letallthetrashraindown]

What is the difference between a cathedral and a physics lab? Are they not both saying: Hello?

Paolo Giordano, “The Solitude of Prime Numbers” / Antonio Tonelli / Laura Giplin, “A Toast to the Alchemists” / Dennis Overbye, “Music of the Heavens Turns Out to Sound a Lot Like a B Flat” / Carina Nebula / Marie Howe, “Singularity” / Alan Bean, “Is Anyone Out There?” / Bill Bryson, “A Short History of Nearly Everything” / Garrett Lee, “Canyon” / Whit Bronaugh, “The Trees That Miss The Mammoths”

[violetsandshrikes]

to all my researchers, students and people in general who love learning: if you don't know this already, i'm about to give you a game changer

connectedpapers

the basic rundown is: you use the search bar to enter a topic, scientific paper name or DOI. the website then offers you a list of papers on the topic, and you choose the one you're looking for/most relevant one. from here, it makes a tree diagram of related papers that are clustered based on topic relatability and colour-coded by time they were produced!

for example: here i search "human B12"

i go ahead and choose the first paper, meaning my graph will be based around it and start from the topics of "b12 levels" and "fraility syndrome"

here is the graph output! you can scroll through all the papers included on the left, and clicking on each one shows you it's position on the chart + will pull up details on the paper on the right hand column (title, authors, citations, abstract/summary and links where the paper can be found)

you get a few free graphs a month before you have to sign up, and i think the free version gives you up to 5 a month. there are paid versions but it really depends how often you need to use this kinda thing.

[posidonina]

Picked these flowers on my way home to classify them for my exam herbarium 🌼

🌿 The purple one is Malva sylvestris (Malvaceae), the yellow one is Hypericum coris (Guttiferae)!