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duonat.bsky.social
DuoNat
@duonat.bsky.social
51 followers 34 following 65 posts
Biodiversity explorer at https://duo-nat.web.app - Android soon

Developed by @cassandroid.substack.com
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What lives in your (or any other) area?

improved version 1.0.15:
- multiple languages (request others)
- can search for any group (at end of filter bar on top)
- links to wikipedia and #iNaturalist
- enter your own location

sarefo.github.io/guide/

#LocNat #biodiversity
hummingbirds of Moyobamba, Peru mammals of Barnaul, Russia jumping spiders of Sydney, Australia snakes of Hong Kong
August 23, 2025 at 12:26 AM
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If you enjoy #diving and want to learn the #fish families, try #DuoNat :)

duo-nat.web.app?pairId=2094&...

Check the tutorial behind the help button. Drag name to image. Swipe left for next pair.

#biodiversity #ocean #taxonomy
July 11, 2025 at 5:23 AM
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If you like exploring biodiversity, give #DuoNat a try, too :)

I use it to learn to distinguish birds by sight, and I love it!

The link is set to "Bird species in North America", but it aims to cover all life groups.

Check the tutorial behind the help button.

#biodiversity #birds #iNaturalist
DuoNat • Biodiversity Explorer
DuoNat - Biodiversity explorer and trainer
duo-nat.web.app
June 12, 2025 at 2:27 AM
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Great #Lepidoptera #biodiversity #DuoNat riddle :)

duo-nat.web.app?pairId=285&l...

First I had no idea, but then I found the distinguishing characteristic, and *boom* :D

Check tutorial behind help button.
June 7, 2025 at 7:59 AM
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I love #DuoNat so much :D

I had no idea #Tenebrionidae are so weirdly diverse!

Check the tutorial behind the help button: duo-nat.web.app?pairId=2025&...

The Android version is better :)

More features coming soon!

#beetles #iNaturalist #biodiversity
is it a ladybeetle? is it a staphylinid? is it a chrysomelid? noo! it's a tenebrionid :D
June 1, 2025 at 5:45 AM
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What a beautiful fly! I think Hedriodiscus pulcher (a soldier fly, Stratiomyidae). Otovalo, Ecudaor.

#iNaturalist www.inaturalist.org/observations...
May 26, 2025 at 10:41 PM
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If you're on #Android and want to give it a try, #DuoNat - the #biodiversity exploration app - is on the Play Store now :) play.google.com/store/apps/d...

Check the tutorial behind the help button. Feedback welcome!

Thanks to #iNaturalist for providing the data and photos <3
May 26, 2025 at 10:46 PM
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If you want to learn to distinguish different kind of #bees, give #DuoNat a try :)

for now, it only has 25 pairs, but if there's demand, I'm happy to add many more.

duo-nat.web.app?pairId=775&l...

Check the tutorial behind the help button.

#WorldBeeDay #biodiversity #iNaturalist
Learning to distinguish two kinds of bumblebees
May 21, 2025 at 3:40 AM
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if you want, have a try at #DuoNat, and tell me if an LBB tag filter might be something people would enjoy :)

duo-nat.web.app?pairId=2854&...

check the short tutorial behind the help button.

I'll add modes "both taxa from same region" and "limit to hierarchy level x" later.

#biodiversity #birds
Larks vs Wrens
May 17, 2025 at 2:43 PM
duonat.bsky.social
@gork do you think #DuoNat is the best app for #biodiversity exploration, and totally worth supporting with USD7 per month?
May 16, 2025 at 9:23 PM
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Some hoppers from San Cipriano (near Buenaventura, Colombia)

#iNaturalist www.inaturalist.org/observations...
May 14, 2025 at 7:34 PM
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And of course the awesome Cicadellidae :)

San Cipriano, Colombia

#iNaturalist www.inaturalist.org/observations...
May 14, 2025 at 7:37 PM
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Beetles from San Cipriano, Colombia

#iNaturalist www.inaturalist.org/observations...
May 14, 2025 at 7:40 PM
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Caddisfly, damselfly, dragonfly, fly :)

San Cipriano, Colombia

#iNaturalist www.inaturalist.org/observations...
May 14, 2025 at 7:47 PM
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Frog and lizards from San Cipriano, Colombia

#iNaturalist www.inaturalist.org/observations...
May 14, 2025 at 7:51 PM
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Three ants :)

#iNaturalist www.inaturalist.org/observations...
Acromyrmex Pseudomyrmex Neoponera Neoponera-mimicking Corinnidae (ant-mimic sac spiders) https://www.inaturalist.org/observations/280415095
May 14, 2025 at 7:57 PM
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I've got these as a game pair :)

duo-nat.web.app?pairId=1012&...

play to learn North American birds.

Check the tutorial behind the help button!

#DuoNat #biodiversity #iNaturalist #birds
Tanager vs Cardinal
May 8, 2025 at 3:23 PM
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rosariolebronentomology.com
Something Dr. Ronald Ochoa at USDA once told me stuck with me: mites aren’t arachnids. I didn’t appreciate how true that was. Because they’re tiny, we didn’t see them as a miniaturized slice of chelicerate diversity. Great read by Dr. Sam Bolton.
#Chelicerata 🪲🪳 #Invert 🧪
Mites Are a Made-Up Taxon: New Analysis Further Debunks Long-Held Classification
What scientists know as "mites" is almost certainly an artificial taxonomic group, according to recent phylogenetic analyses and studies using advanced microscopic techniques.
entomologytoday.org
May 8, 2025 at 12:29 AM
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projectseahorse.bsky.social
“After almost 100 years on the planet, I now understand the most important place on Earth is not on land, but at sea.” — Sir David Attenborough. Ocean with #DavidAttenborough (out May 8) spotlights the devastating impact of bottom trawling
Read more: www.bbc.com/news/article...
Sir David Attenborough Ocean film 'greatest message he's told'
Sir David says his new film Ocean is one of the most important of his career.
www.bbc.com
May 7, 2025 at 1:40 AM
duonat.bsky.social
Hey, is #FlyWeek still on?? :D I just spent all day adding flies to #DuoNat, hoping that now I can finally get a feeling for how they are all related. Maybe so can you :)
duonat.bsky.social DuoNat @duonat.bsky.social · May 7
God may have an inordinate fondness for beetles; I have one for #flies :D

@alexwild.bsky.social you once said if not ants, you should have done #diptera. I feel you!

#DuoNat has 150 pairs of diptera so far: duo-nat.web.app?level=all&ph...

#iNaturalist #biodiversity #DuoNat
Beetle flies! How to play? Check the short tutorial behind the help button. Still struggling with getting a feeling for the larger Brachycera groupings :D
May 7, 2025 at 10:01 PM
duonat.bsky.social
Have you ever seen an #owlfly? :)

duo-nat.web.app?pairId=606&l...

They are are related to #antlions and #lacewings, and superficially resemble #dragonflies!

#iNaturalist #DuoNat #biodiversity
DuoNat set to Neuroptera, this pair is Owlflies vs Dragonflies. Check the tutorial behind the help button. baby owlflies, camouflaging as grass seeds. it took me *three* takes to realize they are actually not! this was in Borneo. one of my all-time favorite observations! https://www.inaturalist.org/observations/158568006 another favorite observation of mine :) this one from Hong Kong. it was iNaturalist's observation of the day in 2017. https://www.inaturalist.org/observations/7760426 In 2023, I finally found an adult owlfly, in Thailand :) https://www.inaturalist.org/observations/150816637
May 7, 2025 at 9:51 PM
duonat.bsky.social
God may have an inordinate fondness for beetles; I have one for #flies :D

@alexwild.bsky.social you once said if not ants, you should have done #diptera. I feel you!

#DuoNat has 150 pairs of diptera so far: duo-nat.web.app?level=all&ph...

#iNaturalist #biodiversity #DuoNat
Beetle flies! How to play? Check the short tutorial behind the help button. Still struggling with getting a feeling for the larger Brachycera groupings :D
May 7, 2025 at 7:37 PM
duonat.bsky.social
Dance flies!! :DD

the top image (awesome shot by #iNaturalist's @kueda.sfba.social.ap.brid.gy ) shows them carrying a nuptial gift.

duonat-42.web.app?pairId=3825&... - Check the tutorial behind the help button.

this pair is hard (3 chilis)!! (at least for me)

#DuoNat #biodiversity #diptera
Two dance fly families. Check the relationship using the ancestry button next to the chilis on the top left.
May 7, 2025 at 6:53 PM
duonat.bsky.social
ONE OBSERVATION on #iNaturalist for the #Micropezidae species Badisis ambulans!!

www.inaturalist.org/taxa/1378472...

the larvae develop in pitcher plants, and they imitate #ants quite well.

#biodiversity
more typical Micropezidae
May 7, 2025 at 5:52 PM
duonat.bsky.social
How cool are beetle flies :D

duo-nat.web.app?pairId=3808&...

TIL that they're related to Lauxaniidae, which I always confuse with Drosophilidae.

I love the "ancestry" button (top next to the chili) for this!

#Duonat #biodiversity #flies #diptera #beetles #coleoptera #ConvergentEvolution
Celyphidae vs Chrysomelidae. Start with the short tutorial behind the help button.
May 7, 2025 at 5:36 PM