Dyr i Detaljen

Lytternes Dyr: Selvlysende Hajer?!

Vidste du, at der findes selvlysende hajer? Og at nogle af dem endda lever tæt på Danmark? - I denne omgang af lytternes dyr kan du møde de fantastiske lanternehajer, som producerer deres eget lys! Tak til Elena for forslaget om selvlysende dyr! OBS: jeg beklager, at der ikke er mange billeder i denne video, det skyldes at der ikke findes mange billeder af lanternehajer, som man må bruge til videoer. Tak for forståelsen :) Billeder af Joacim Näslund, CC BY 4.0 , via Wikimedia Commons Tambja < https://commons.wikimedia.org/wiki/User:Tambja [https://commons.wikimedia.org/wiki/User:Tambja]Tobias Barkskog, CC BY 3.0 , via Wikimedia Commons Kilder https://ocean.si.edu/ocean-life/sharks-rays/dwarf-lantern-shark [https://ocean.si.edu/ocean-life/sharks-rays/dwarf-lantern-shark] https://oceanconservancy.org/blog/2022/10/11/meet-lantern-sharks/ [https://oceanconservancy.org/blog/2022/10/11/meet-lantern-sharks/] https://www.bbc.com/news/articles/cly275d3dvdo

#86 Amazonas dyreliv (4/9) - Når Edderkopper Efterligner Myrer? Mimicry i Amazonas!

Hvorfor efterligner nogle edderkopper myrer? Og hvordan snyder giftige frøer og sommerfugle rovdyr kun ved at bruge farver? Jo, I Amazonas handler overlevelse ikke kun om camouflage – men også om bedrag, og i denne episode dykker vi endnu gang ned i mimicry: Hvordan dyr snyder hinanden i amazonas! I episoden kan du høre om: • Edderkopper der ligner myrer for at undgå rovdyr • Edderkopper der efterligner myrer for at snyde myrer • Edderkopper der bygger kæmpe falske monsteredderkopper i deres spind • Giftige pilegiftfrøer og sommerfugle med stærke advarselsfarver • Sommerfugle der efterligner giftige arter uden selv at være giftige God fornøjelse! Billeder af Zygy, CC0, via Wikimedia Commons Vis M, CC BY-SA 4.0 , via Wikimedia Commons Didier Descouens, CC BY-SA 4.0 , via Wikimedia Commons Vienskabelige kilder Keith R. Willmott, Julia C. Robinson Willmott, Marianne Elias, Chris D. Jiggins; Maintaining mimicry diversity: optimal warning colour patterns differ among microhabitats in Amazonian clearwing butterflies. Proc Biol Sci 1 May 2017; 284 (1855): 20170744. https://doi.org/10.1098/rspb.2017.0744 [https://doi.org/10.1098/rspb.2017.0744] Cushing, Paula. (2012). Spider-Ant Associations: An Updated Review of Myrmecomorphy, Myrmecophily, and Myrmecophagy in Spiders. Psyche. 2012. 10.1155/2012/151989.  Bernarde, P. S., Pucca, M. B., Mota-da-Silva, A., da Fonseca, W. L., de Almeida, M. R. N., de Oliveira, I. S., Cerni, F. A., Gobbi Grazziotin, F., Sartim, M. A., Sachett, J., Wen, F. H., Moura-da-Silva, A. M., & Monteiro, W. M. (2021). Bothrops bilineatus: An arboreal pitviper in the Amazon and Atlantic Forest. Frontiers in Immunology, 12, Article 778302. Andre kilder: https://doi.org/10.3389/fimmu.2021.778302 [https://doi.org/10.3389/fimmu.2021.778302] https://www.nhm.ac.uk/discover/henry-walter-bates-amazon-butterflies.html [https://www.nhm.ac.uk/discover/henry-walter-bates-amazon-butterflies.html] https://worldrainforests.com/0306.htm [https://worldrainforests.com/0306.htm] https://www.bristol.ac.uk/cabot/news/2025/butterflies.html [https://www.bristol.ac.uk/cabot/news/2025/butterflies.html] https://atmos.earth/ecological-wisdom/aposematism-and-the-beauty-of-awareness/ [https://atmos.earth/ecological-wisdom/aposematism-and-the-beauty-of-awareness/] https://www.worldwildlife.org/species/poison-dart-frog/ [https://www.worldwildlife.org/species/poison-dart-frog/] https://www.snexplores.org/article/poison-dart-frog-transport-toxins-skin [https://www.snexplores.org/article/poison-dart-frog-transport-toxins-skin] https://www.rainforest-alliance.org/species/poison-dart-frog/ [https://www.rainforest-alliance.org/species/poison-dart-frog/] https://www.pbs.org/wnet/nature/blog/inside-nature-featured-creature-glass-wing-butterfly/ [https://www.pbs.org/wnet/nature/blog/inside-nature-featured-creature-glass-wing-butterfly/] https://andeangreattreks.com/blog/insects-of-the-amazon-rainforest/ [https://andeangreattreks.com/blog/insects-of-the-amazon-rainforest/] https://www.heliconius.org/biology/mimicry/ [https://www.heliconius.org/biology/mimicry/] https://www.rainforestexpeditions.com/deception-in-the-jungle-the-ant-mimicking-spider-aphantochilus-rogersi/ [https://www.rainforestexpeditions.com/deception-in-the-jungle-the-ant-mimicking-spider-aphantochilus-rogersi/] https://www.rainforestexpeditions.com/if-it-looks-like-an-ant-and-smells-like-an-ant-batesian-mimicry-in-the-amazon-jungle/ [https://www.rainforestexpeditions.com/if-it-looks-like-an-ant-and-smells-like-an-ant-batesian-mimicry-in-the-amazon-jungle/] https://www.livescience.com/animals/spiders/tiny-spiders-that-build-giant-puppet-decoys-from-disembodied-prey-discovered-in-peru-and-philippines [https://www.livescience.com/animals/spiders/tiny-spiders-that-build-giant-puppet-decoys-from-disembodied-prey-discovered-in-peru-and-philippines] https://en.wikipedia.org/wiki/Batesian_mimicry [https://en.wikipedia.org/wiki/Batesian_mimicry]

Lytternes Dyr: Savhajen verdens mærkeligste haj?

I denne del af mini konceptet yLtternes Dyr, kan du høre om den mærkelige og sjældne savhaj. Tusind Tak til Antonski for forlsaget! Jeg beklager at der ikke er mange billeder i denne episode,men det skyldes at savhajen er sjælden og det derfor er svært at finde billeder, som man må bruge. Tak for forståelsen:) Kilder : https://ocean.si.edu/ocean-life/sharks-rays/sawshark [https://ocean.si.edu/ocean-life/sharks-rays/sawshark] https://www.afma.gov.au/species/sawsharks#referenced-section-2 [https://www.afma.gov.au/species/sawsharks#referenced-section-2] https://www.sharks.org/blog/2020/6/15/sawfish-or-sawsharkhow-are-they-different https://saveourseas.com/update/the-cutting-edge-of-sawshark-research/ [https://saveourseas.com/update/the-cutting-edge-of-sawshark-research/] https://australian.museum/learn/animals/fishes/common-sawshark-pristiophorus-cirratus/ [https://australian.museum/learn/animals/fishes/common-sawshark-pristiophorus-cirratus/] https://www.theguardian.com/environment/2022/dec/07/discovered-in-the-deep-the-extraordinary-sawshark-with-a-weapon-like-snout [https://www.theguardian.com/environment/2022/dec/07/discovered-in-the-deep-the-extraordinary-sawshark-with-a-weapon-like-snout] https://oceanographicmagazine.com/news/new-species-six-gilled-sawshark/ [https://oceanographicmagazine.com/news/new-species-six-gilled-sawshark/]

Orangutang-special 🦧: En orangutangs liv og fremtid | Med Red Orangutangen

Dette afsnit er noget helt særligt. I samarbejde med Red Orangutangen og Aalborg Zoo har jeg fået lov til at dykke ned i orangutangens verden. Jeg har talt med to af Red Orangutangens dygtige medarbejdere om deres arbejde med at redde en af verdens mest truede aber, nemlig orangutangen. For hvad driver mennesker til at vie deres liv til at bevare orangutanger? Hvordan lærer mennesker unge forældreløse orangutanger at klare sig selv i “orangutangskole”? – og hvad kræver det egentlig at redde en art fra udryddelse? Det er nogle af de emner, du kan høre om i dette afsnit! + Du får selvfølgelig også masser af facts om orangutanger: deres liv i trætoppene, deres adfærd – og de alvorlige trusler, de kæmper imod. God fornøjelse 🎧 Tusind tak til Daniel, Jens og resten af holdet fra Red Orangutangen for at i ville medvirke! Vil du vide mere om Red Orangutangen Klik her [https://redorangutangen.dk/?gad_source=1&gad_campaignid=10058365132&gbraid=0AAAAADq-s1YXqXYLHViJ1Wc_zMQDr9mPd&gclid=CjwKCAjw-8vPBhBbEiwAoA39Wm6szSzwCvCZ0Z4kuB1H1ssncuR4jF7z_Pakmbp7G03MtP0kLGQ4vBoCt9oQAvD_BwE]

#85 Amazonas dyreliv (3/9) - Camouflage: Gennemsigtige frøer og insekter der snyder forskere!

Hvordan bliver et dyr næsten usynligt? Midt i Amazonas sidder en lille frø, der kan gøre sig næsten gennemsigtig og gemme sit blod for at forsvinde fra rovdyr. Og den er kun begyndelsen. I denne episode dykker vi ned i Amazonas’ vilde verden af camouflage – hvor dyr ikke bare gemmer sig, men narrer selv de skarpeste rovdyr ved at ligne blade, bark og døde grene. I episoden kan du høre om: • Glasfrøen, der kan blive gennemsigtig • Amazonas’ “falske kamæleoner” • Blad- og pindelignende insekter, der snyder selv forskere • Knælere der ligner bark – og både jager og gemmer sig • Pacman-frøer med kæmpe bid og ekstrem camouflage • Fuglen potoo, der ligner en gren til perfektion Billeder af: Graham Wise from Brisbane, Australia, CC BY 2.0 , via Wikimedia Commons Geoff Gallice from Gainesville, FL, USA, CC BY 2.0 , via Wikimedia Commons Pavel Kirillov from St.Petersburg, Russia, CC BY-SA 2.0 , via Wikimedia Commons Pavel Kirillov, CC BY-SA 4.0 , via Wikimedia Commons Allissondias, CC BY-SA 4.0 , via Wikimedia Commons Svenson G, CC BY 4.0 , via Wikimedia Commons Bernard DUPONT from FRANCE, CC BY-SA 2.0 , via Wikimedia Commons Jiri Hodecek, CC BY-SA 4.0 , via Wikimedia Commons Bernard DUPONT from FRANCE, CC BY-SA 2.0 , via Wikimedia Commons Kilder Videnskabelige artikler * Major, T., Hesten, A. C. M., Stipala, J., Cant, M. A., Stevens, M., & Troscianko, J. (2025). Flap-necked chameleons change colour to match their background. Biology Letters, 21(8), 20250134. https://doi.org/10.1098/rsbl.2025.0134 [https://doi.org/10.1098/rsbl.2025.0134] * Madeira-Ott, T., Thyssen, P. J., & Costa, J. (2020). Phasmatodea in Brazil: Status, new record, and molecular tools for species identification. Neotropical Entomology, 49, 916–922. https://doi.org/10.1007/s13744-020-00798-3 [https://doi.org/10.1007/s13744-020-00798-3] * Ghirotto, V. M. (2021). Morphology, taxonomy, and biology of Canuleius similis. Zoologischer Anzeiger, 292, 30–57. https://doi.org/10.1016/j.jcz.2021.02.009 [https://doi.org/10.1016/j.jcz.2021.02.009] * Castner, J. L., & Nickle, D. A. (1995). Color polymorphism in leaf-mimicking katydids. Journal of Orthoptera Research, 4, 99–103. https://doi.org/10.2307/3503464 [https://doi.org/10.2307/3503464] * Braun, H. (2015). Biology and taxonomy of Typophyllum species. Zootaxa, 4012(1), 1–32. https://doi.org/10.11646/zootaxa.4012.1.1 [https://doi.org/10.11646/zootaxa.4012.1.1] * de Alcantara Viana, J. V., Campos Duarte, R., Vieira, C., et al. (2023). Crypsis and disruptive coloration in Amazonian mantises. Scientific Reports, 13, 19985. https://doi.org/10.1038/s41598-023-46204-x [https://doi.org/10.1038/s41598-023-46204-x] * Cestari, C., Gonçalves, C., & Sazima, I. (2018). Perch flexibility in the common potoo. The Wilson Journal of Ornithology, 130, 191–199. https://doi.org/10.1676/16-175.1 Andre https://worldrainforests.com/0306.htm [https://worldrainforests.com/0306.htm] https://www.rainforest-alliance.org/species/northern-glass-frog/ [https://www.rainforest-alliance.org/species/northern-glass-frog/] https://www.ifaw.org/animals/glass-frogs [https://www.ifaw.org/animals/glass-frogs] https://www.nibib.nih.gov/news-events/newsroom/let%E2%80%99s-clear-things-how-do-glassfrogs-achieve-transparency?utm_source=chatgpt.com [https://www.nibib.nih.gov/news-events/newsroom/let%E2%80%99s-clear-things-how-do-glassfrogs-achieve-transparency?utm_source=chatgpt.com] https://en.wikipedia.org/wiki/Chameleon [https://en.wikipedia.org/wiki/Chameleon] https://www.reptilesofecuador.com/polychrus_marmoratus.html [https://www.reptilesofecuador.com/polychrus_marmoratus.html] https://web.archive.org/web/20160303230855/http://www.xerces.org/wp-content/uploads/2010/06/naskrecki_katydids_wings-sp10.pdf [https://web.archive.org/web/20160303230855/http://www.xerces.org/wp-content/uploads/2010/06/naskrecki_katydids_wings-sp10.pdf] https://entomologytoday.org/2014/03/19/nineteen-speedy-new-praying-mantis-species-discovered-from-central-and-south-america/ [https://entomologytoday.org/2014/03/19/nineteen-speedy-new-praying-mantis-species-discovered-from-central-and-south-america/] https://www.notesfromtheroad.com/roam/potoo-bird.html [https://www.notesfromtheroad.com/roam/potoo-bird.html] https://fatbirder.com/ornithology/nyctibiidae-potoos/ [https://fatbirder.com/ornithology/nyctibiidae-potoos/] https://www.iflscience.com/is-the-spiny-devil-katydid-the-strangest-insect-in-the-world-you-tell-us-79091 [https://www.iflscience.com/is-the-spiny-devil-katydid-the-strangest-insect-in-the-world-you-tell-us-79091] https://amphibiaweb.org/species/5720 [https://amphibiaweb.org/species/5720] https://puertomaldonadotours.com/amazon-horned-frog/ [https://puertomaldonadotours.com/amazon-horned-frog/]