Comments by "Dr. Ian Plect" (@Dr.IanPlect) on "Bizarre Beasts" channel.

  1. I'm a zoologist, but before throwing my 2 cents at this; I am unfamiliar with the details and history of this example, I had to watch the vid to know what your comment was questioning! Anyway, this is an example, for the plant and ants, of mutual symbiosis, wherein each taxon benefits from the interaction. ------ "Is it correct to say that the plant has reason to produce these leaves. Like it has a choice." - neither, if you mean a conscious decision! Like all of evolution via natural selection, the adaptations are unplanned, unguided. They develope because each step along the route to a highly developed adaptation like these leaves has a small but significant advantage among members in the population. Therefore the genes responsible for the incremental steps get passed on through successive generations as those plants having them are successful at reproducing thanks to the developing adaptation. Note this applies to both plant (adapting its leaves that benefit the ant) and ant (adapting its behaviour to living on the plant, giving protection "Of is it correct to say that ants are "supposed to" form a symbiotic relationship. In both cases, it seems like you are saying the plant has made choices and those choices seem to be made while considering its environment." - as in my above response, both parties would have co-developed the relationship, not the plant alone and sending invites out to all ants! Is it ok to talk like this? Is it true. Or is it just a soft way of giving a plant emotions for narrative effect? ie: the plant morphology is defined by its DNA and if the ants and spiders went extinct this winter, it would still be making the same leave like a chump in the summer." - again, both parties would have co-developed the relationship. If somehow the ants went extinct, the plants would not maintain those leaves in future generations. Producing nutrients and structures to hold them is costly! Eventually they would evolve away from this adaptation. Here's a possible incremental development of this symbiosis, in brief. And remember, I know nothing about this very example, I'm drawing upon my general knowledge of evolution etc. a) plant leaves start as normal leaves, no Beltian bodies and no interest from ants b) a mutation in some plants causes the leaf tips to deposit small amounts of extra nutrients than normal. c) ants can detect these nutrients, are attracted to the leaves, begin feeding d) the presence of the ants deters herbivores that would otherwise eat the leaves, putting the plant's survival and ability to reproduce at risk e) as a result of this ant presence, the plants having the extra nutrient gene have a higher success rate at reproducing; that gene spreads and becomes widespread These steps are the beginning of the symbiosis and none of it is preplanned or known in advance by the plant or ant. It's adaptive evolution by plant and ant. You can see that each step requires no forethought, they're consequential to each other. Perhaps you're unaware that mutations are random, so no forethought there either, the mutation just happens to be beneficial. You can then imagine another mutation refining the leaf tips into the bulbous structures that Beltian bodies are, containing even more nutrients that attract ants more, and with greater motivation to reside on and protect the plant. As I said; adaptive evolution in the form of mutual symbiosis.
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  40.  @lemongrab6173  "I’m not sure if you’re a troll or someone desperately looking for an argument." - neither, I just addressed your error "But as a zoologist I guarantee you" - as you mentioned profession, you might have noticed my username, that's me; BSc biology, PhD zoology. Unlike you though, I don't offer guarantees, a silly remark. All knowledge is provisional. Your next remark makes this guarantee worthless, let's get to that... "that the only thing these two species have in common is that they’re both members of the bird class like how sheep are mammals like humans. But nothing related in terms of genetics anatomy or even behaviour." - Not only have you got it completely wrong regarding relatedness, this bit about 'nothing related in terms of genetics, anatomy or even behaviour' is so deeply wrong it makes me question you saying you're a zoologist! Genetics unites all organisms, anatomy unites all vertebrates (as we're talking mammamls and birds) and behaviour has some degree of commonality across vertebrate level too! "Either way your argument is very pointless. If he had to mention that they’re related to turkeys because they’re simply both birds, then I’m quite certain even some one with special needs has the cognitive capabilities to see it. But that was not his point he was trying to imply that the two birds share a close ancestry but that is simply not true. And spreading false information for mere views is spreading ignorance not something we scientists stand for." - I addressed YOUR comment, this is irrelevant ----------- You increasingly demonstrate your ignorance, I won't be repeating my points. All organisms are related, something you don't understand.
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