Welcome to the 30th Daily Field Note! Here you find the top post of the day, one covering each scientific field that is included by Geopolis. Since these authors put a lot of effort in writing a good post they surely deserve the extra exposure.
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Subjects curated by Geopolis are Geography, Anthropology, Ecology, Geology, Archeology and certain branches of History.
Ecology: All about mangroves and its wonders!
Mangroves truly are a crucial part of many ecosystems and they are under severe stress at some locations. Mostly because economic advantages weigh out the advantages of conservation. 
Hi Steemians, I will discuss a species belonging to the kingdom PLANTAE, family Rhizophoraceae and then genus Rhizophora. This is mangroves. The word "mangrove" is used in three different senses: most broadly to refer to the habitat and entire plant assemblage or mangal for which the terms mangrove forest biome, and mangrove swamp are also used, to refer to all trees and large shrubs in the mangrove swamp narrowly to refer to the mangrove family of plants
Geology: Oddball Geological Features: Vol. 6 - Gargantuan Crystals
This probably isn't the first time you see caves filled with giant crystals, and it might be that you have already seen this specific cave in Mexico with some of the largest know crystals. But the conditions for these selenite crystals to form are rather specific, so to know more about where you can find these and how they are formed, read 
It's been a hot minute since I've written about an oddball geological feature. This is largely because it was only supposed to be a 5 part series. However, through my research I discovered there is a plethora of strange geological formations that exist - not only on Earth, but in our solar system as well. Therefore, from now on I will title these posts as a volume, rather than a part. When the collection will end can only be determined by a lack of oddball geological features. Challenge accepted Feast your eyes on these behemoth crystals found at the Cave of Crystals. Note the person standing next to one of the crystals.
Anthropology: Communication: Part 5 - Language and Symbols
In his 5th part of his anthropological series on communication 
In the previous posts Part 3 and Part 4, I have explained the meaning of symbolism and pointed out that it is a means of communication. Here we look more closely at language and symbolism. Language is based on people's capacity for symbolism and involves the communication of ideas and actions through sounds in a context of time, place and occasion. Speech consists of auditory symbols (ie: phenomena that we can hear). Writing presents a further level of symbolism in that it presents visual symbols of these auditory symbols.
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