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| | ==Explanation== | | ==Explanation== |
| − | This is the second [[:Category:Christmas|Christmas comic]] in a row after [[2245: Edible Arrangements]]. It is also the second comic in a row about presents, this one in particular calls them {{w|Christmas gift|Christmas presents}}, and this comic was released on {{w|Christmas}} Day.
| + | {{incomplete|Created using the [[User:DgbrtBOT|BOT template]]. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}} |
| | + | This is the second comic in a row about presents, this one in particular calls them {{w|Christmas gift|Christmas presents}}, and it is also the comic released on {{w|Christmas}} Day. It is thus the second [[:Category:Christmas|Christmas comic]] in a row after [[2245: Edible Arrangements]]. |
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| − | A {{w|Christmas tree}} cut down from the woods will typically be placed in a living-room soon after being cut down, and left standing there through the holiday season. On {{w|Christmas Eve}} or {{w|Christmas Day}}, or even earlier, presents are typically put beneath the tree under the lower branches. Once the tree is cut down, it will eventually start turning brown and/or losing its needles as it no longer receives any nutrients from its roots.{{Citation needed}} | + | A {{w|Christmas tree}} cut down from the wood, will typically be placed in a living room some time after being cut down, and stand in their for some time. On {{w|Christmas Eve}} or {{w|Christmas Day}}, presents will typically be put beneath the tree in the shade of the lower branches. At this time the tree may already have started turning brown loosing its needles. |
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| − | Based on this observation (on Christmas Day) some biologist (or [[Randall]]) concludes that the presents are a type of {{w|parasitic plant}}—that is, a plant that derives some or all of its nutritional requirement from another living plant. Since such a plant can use the sugars produced by the parasitized tree it does not necessarily have to perform photosynthesis by itself (although some parasitic plants such as mistletoe are photosynthetically active). If the parasitic plant is not doing photosynthesis it can live in the shade beneath a tree that it parasitizes as it has no need for light, and since it does not need chlorophyll either, it may not be green (e.g. {{w|Orobanche}}). | + | Based on this observation (on Christmas Day) some biologist (or [[Randall]]) concludes that the presents are a type of {{w|parasitic plant}}. That is a plant that derives some or all of its nutritional requirement from another living plant. Since it then may not need the sun, it may not need to be green as it has not so much need for Chlorophyll as it lives in the shade beneath the tree that it is a parasite on. With the presents often being wrapped in bright white and red colored paper, Randall conclude that this indicate a lack of Chlorophyll, thus fitting with the idea of a parasitic plant. |
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| − | With presents often being wrapped in bright white and red colored paper, Randall concludes that this indicates a lack of chlorophyll, thus fitting with the idea of a parasitic plant. With the presents being in the shade of the tree and the tree's health suffering, the evidence can only lead to the conclusion that Christmas presents are parasitic plants.
| + | With the presents being in the shade of the tree and the three health suffering the evidence can only lead to the conclusion that: Christmas presents are parasitic plants. |
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| − | In the title text a biologist says that "The parasitism might be mediated by a fungus!" While many parasitic plants attach themselves directly to the plant they are parasitizing (e.g. {{w|mistletoe}}, a parasitic plant which is often used to symbolize romance at Christmas) this is obviously not the case with the Christmas presents which are not growing out of the Christmas tree - which appears to rule out a parasitic relationship. However, the biologist has an answer for that: Some parasitic plants (such as {{w|sarcodes|snow flowers}}) do not attack the tree directly but instead form a connection to mycorhizal {{w|Fungus|fungi}}. These fungi are receiving sugars from the trees and in turn provide it with mineral nutrients. By parasitizing these fungi, the snow flower can steal the sugars of the tree indirectly. One says that the fungus is mediating the parasitism. | + | In the title text a biologist says that "The parasitism might be mediated by a fungus!" The {{w|fungus}} could help the parasitic plant in its endeavor to use the normal plant for its growth.{{Citation needed}} Randall says this is just the biologist who is trying to ruin Christmas again. It is unclear if the first time was the one about presents being parasitic plants, and this one then just makes it worse because the presents now has a fungi on them as well. |
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| − | Randall dismisses these words as coming from a biologist who is "trying to ruin Christmas again", which could have several meanings. It could be that the biologist really is just trying to ruin Christmas, and is trying to be more successful than in previous years by tying Christmas presents to fungus in people's minds. One might say that the biologist is not a "fun guy" for doing this. {{Citation needed}}
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| − | It could instead be the case that the biologist is quite earnest in his belief that Christmas presents are harmful plant parasites and is attempting to spray the presents with a {{w|fungicide}}, which would probably be toxic and potentially contaminate not only the wrapping paper but also the presents inside their boxes.
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| − | Finally, it could be that the biologist is right, and Christmas presents are hosts to or otherwise associated with a parasitic fungus (and Randall's dismissal is a sign of his infection). There are some parasitic fungi that hijack the brains of host animals and alter their behavior. The most famous of these is probably ''{{w|Ophiocordyceps unilateralis}}'', the so-called "zombie ant fungus", which causes its hosts to perch on a high plant to maximize the distance traveled by the fungus's spores. Ants have in turn developed strategies for detecting and removing infected members from the colony's territory. None of these fungi are known to infect humans, but they did inspire the zombie fungus in ''{{w|The Last of Us}}''.
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| | ==Transcript== | | ==Transcript== |
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| | [[Category:Christmas]] | | [[Category:Christmas]] |
| | [[Category:Biology]] | | [[Category:Biology]] |
| − | [[Category:Mycology]] <!--Title text-->
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