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Wolf spiders (Lycosidae) vs. Wandering spiders (Ctenidae): Key Differences.
Introduction Spiders often spark confusion due to their diversity and superficial similarities. Two groups frequently mistaken for each...

Bryan Ramírez Castro
Apr 182 min read
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The Ojoche Tree in Costa Rica: An Ancestral Legacy and Food of the Future
The ojoche tree (Brosimum alicastrum), also known as ramón or Maya nut, is an emblematic species of Central America with deep roots in...

Bryan Ramírez Castro
Apr 153 min read
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The presence of Dendrobatid frogs in Costa Rica and the myth of "Dart frogs"
Costa Rica is renowned for its extraordinary biodiversity, particularly in amphibians. A recurring question is: Why does Costa Rica lack...

Bryan Ramírez Castro
Apr 73 min read
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Morphic Fields: Rupert Sheldrake’s controversial theory bridging biology and the unexplained
Have you ever wondered why birds instinctively flock in perfect formations, or how humans across cultures learn language with startling...

Bryan Ramírez Castro
Apr 73 min read
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Horizontal gene transfer: Nature’s secret genetic network
Imagine if you could instantly ‘download’ new traits from a friend, like stronger immunity or the ability to digest weird foods. While...

Bryan Ramírez Castro
Apr 62 min read
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Dentition types in Neotropical snakes: Morphological adaptations and phylogenetic significance.
The dentition of Neotropical snakes reflects evolutionary adaptations to prey capture, venom delivery, and ecological niches. This review...

Bryan Ramírez Castro
Mar 32 min read
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Frogs and flow: How water movement shapes the lives of neotropical amphibians.
Picture a river in Costa Rica: torrents of water crash against rocks in some sections, while calm pools mirror the sky in others. These...

Bryan Ramírez Castro
Feb 253 min read
49 views
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Lotic vs. Lentic Frogs: Masters of flowing and still waters
To understand how frogs thrive in aquatic habitats, we need to explore two key terms: lotic and lentic. These words describe the...

Bryan Ramírez Castro
Feb 252 min read
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Hongos entomopatógenos en Costa Rica y el Neotrópico: control conductual y su salto evolutivo
Introducción Los hongos entomopatógenos (HEP) son organismos fascinantes que han perfeccionado estrategias evolutivas para parasitar y...

Bryan Ramírez Castro
Feb 193 min read
125 views
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GTPasas heterotriméricas: Estructura, función y mecanismo
Las GTPasas heterotriméricas, comúnmente conocidas como proteínas G heterotriméricas, son complejos proteicos esenciales en la...

Bryan Ramírez Castro
Feb 192 min read
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Proteínas G en hongos: Estructura, función y roles clave
1. Definición y Estructura de las Proteínas G Las proteínas G son GTPasas heterotriméricas que actúan como intermediarias en la...

Bryan Ramírez Castro
Feb 192 min read
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Lichens: The ultimate symbiotic superorganisms
1. What are lichens? Beyond plant, fungus, or alga Lichens are not single organisms but mutualistic partnerships between two (or more)...

Bryan Ramírez Castro
Feb 183 min read
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The impact of flashlights and lasers in forests and the role of responsible wildlife observation.
The impact of flashlights and lasers in forests and the role of responsible wildlife observation.

Bryan Ramírez Castro
Jan 143 min read
23 views
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Biología cuántica.
La biología cuántica es una rama emergente que combina los principios de la mecánica cuántica con los fenómenos biológicos. Aunque puede...

Bryan Ramírez Castro
Jan 132 min read
59 views


Impactos negativos de los Comederos de Fauna en Hogares y Sitios turísticos.
En Costa Rica, un país reconocido por su biodiversidad y compromiso con la conservación ambiental, la práctica de colocar comederos para...

Bryan Ramírez Castro
Oct 14, 20242 min read
51 views
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Neurobiología vegetal.
Aunque pueda parecer sorprendente para muchas personas, las plantas tienen una complejidad biológica que rivaliza con la de los animales....

Bryan Ramírez Castro
Oct 10, 20241 min read
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Micología computacional.
Para comprender un poco sobre la Micología computacional primero desfragmentaremos estos términos compartiendo sobre la micología y que...

Bryan Ramírez Castro
Sep 1, 20243 min read
22 views
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“El Vuelo del Espíritu: Aves en la Cosmovisión de Costa Rica y Mesoamérica”:
Estos seres plumados siempre han sido una parte importante del día a día en la historia de la humanidad, atribuyéndoseles distintas...

Bryan Ramírez Castro
May 15, 20245 min read
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Ranas de vidrio (Familia Centrolenidae)
Información sobre las ranas de vidrio y una lista de las especies de Costa Rica con material de apoyo para educadores y estudiosos.

Bryan Ramírez Castro
Apr 6, 20244 min read
94 views
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Rana de ojos rojos (Agalychnis callidryas)
Foto por: Bryan Andrés Ramírez Castro El siguiente trabajo es un resumen o síntesis de información sobre la especie enfocado a su...

Bryan Ramírez Castro
Apr 1, 20245 min read
207 views
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