Discover and read the best of Twitter Threads about #Paleontropica

Most recents (2)

This tiny crab trapped in 100-million-year-old amber is the most complete fossil crab ever discovered! But how did a crab get trapped in amber in the first place? Here we tell you the story
science.org/doi/10.1126/sc… #Science #Evolution #SciComm 1/n Image
Transitions from marine to non-marine environments (e.g., land, brackish & freshwater) are an infrequent even in most animal groups. And yet, true crabs, or #Brachyura, have done it independently over a dozen times! #ocean #freshwater #evolution 2/n Mangrove tree crab, Aratus ...
Amber is like a time capsule that preserves organisms like frozen in time. While most fossils in amber are land-dwelling animals—principally insects—, aquatic organisms such as crabs are extremely rare! #amber #jurassicpark #Cretaceous #Crabs Photo by @LidaXing1982 3/n Image
Read 9 tweets
1/17 ¿Alguna vez han visto un árbol tan grande como un edificio de 10 pisos en medio de un páramo? #Paleontropica #Eldesparche_
2/17 Pues nosotros sí, aunque no fue en medio de un páramo, sino en medio de la puna peruana, a 4000 metros sobre el nivel del mar. La puna es un ecosistema que ocupa el mismo rango de elevación de los páramos, sin embargo, su nivel del lluvias y humedad es mucho más bajo.
3/17 Como consecuencia, su diversidad es menor y los emblemáticos frailejones no llegan a crecer allí. El paisaje es dominado por pastos y solo se llegan a ver algunos arbustos en zonas resguardadas del inclemente viento, como estos cañones: #Paleontropica
Read 17 tweets

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