Analysis of giant #extinct marine reptile graveyard suggests mysterious site was ancient birthing ground https://phys.org/news/2022-12-analysis-giant-extinct-marine-reptile.html
Grouping behavior in a #Triassic marine apex predator https://www.cell.com/current-biology/fulltext/S0960-9822(22)01761-4
Today's #whales routinely make massive migrations across the ocean to breed and give birth in waters where #predators are scarce, with many congregating year after year along the same stretches of coastline. #Ichthyosaurs may have been making similar migrations.
#Paleoart by @serpenillus
Analysis of giant extinct marine reptile graveyard suggests mysterious site was ancient birthing ground
Today's marine giants—such as blue and humpback whales—routinely make massive migrations across the ocean to breed and give birth in waters where predators are scarce, with many congregating year after year along the same stretches of coastline.
More concept art from
#PrehistoricPlanet. Those follows a colony of Alcione hatchings taking their first flight to reach the safety of the coastal forests. High res : artstation.com/artwork/yJO9b9
Young Ornithomimus arrives late to the nesting colony and ends up stealing from other nests. Concepts art I did for
#PrehistoricPlanet for the ICE WORLDS episode. High res:
https://www.artstation.com/artwork/YK3roXAt least there is something to be thankful for.
@emoryr hahaha I'm not sure I've ever tried to figure that out :)
But those frog models that had warning coloration on parts of the body that were not covered by tadpoles, their risk of attack was much lower! i.e., coloration on head and limbs could still serve their warning function ⚠️
And guess what! 🤯our trained chickens attacked first those frog models that had tadpoles on their backs than those models that had no tadpoles!
Once our super chicks were ready! 🐥 We set them one last task, this time to find out if they could recognize the frog models ⚠️🐸 when they had a different numbers of tadpoles on their backs.
To answer our question, we used printed frog models with and without warning coloration 🔴🟡⚠️- 🟤 and trained chicks to learn to discriminate between them!
In this work we wonder whether poison frogs tadpoles upon transport could cover or alter the warning coloration of their parental, towards a potential visually oriented predator 👀☠️🦅 and maybe alter their predation risk.
Lukas VFN 🇪🇺
Gaëlle Seguillon
Matthew Chatfield
Dr. Casey Fiesler