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Because we all love science!

I am not! Though I have had some of my students also tell me about them

Do you know of a more recent phylum...? Just because they are the most recent, doesn't mean that it still wasn't millions of years ago...

@@ProfessorNewtoff I know but, aren’t phylum’s like echinoderms and hemichordates are either younger or roughly about the same age as chordates? In the evolutionary tree of Deuterostomes, chordates diverged from the common ancestor that gave rise to both Echinoderms and hemichordates making their lineage slightly older. But, in other evolutionary trees about Deuterostomes that includes the extinct phylum known as Vetulicolia, it is grouped as closely related to chordates by showing how both phylum’s diverged from each other from the same common ancestor, thus showing that the common ancestor of chordates and vetulicolians and the common ancestor of echinoderms and hemichordates both evolved from the same common ancestor making either echinoderms chordates appearing at the same time.

@@SooJeon-rt7nq Ah okay, I see what you are getting at now. And very true -- nearly all of the animal phyla evolved during the Cambrian Explosion. You are correct that some things are probably more concurrent versus one after the other. Traditional textbooks list the phyla in the order they are in my channel (at least, in the animal diversity playlist). Because of how long ago it was + the lack of awesome evidence (fossils are great, when fossils are made...), we won't be able to pinpoint exactly when we see emergence. And then you have to consider at what point is the common ancestor to the echinoderms and chordates 'considered' one of those groups versus the predecessor, etc. With the videos on the phyla, I don't really focus or go into depth about timelines because for my classes, what I want them to know is the major characteristics of the groups. Sorry I don't go as in depth here!

Meh semantics that don't really matter -- the beauty of teaching is bringing it down to a level that is more understandable and accessible to a broader audience!

Domain is the most broad and includes the most organisms while species is the most narrow and only contains one organism. So you could say Domain is the highest and Species is the lowest.

@ProfessorNewtoff thank you

Just because other places are polluting more, doesn't mean we can't try to reduce our own emissions!

@@ProfessorNewtoff solar and windmills pollute the world far much worse than coal and oil..

I really appreciate it, thank you so much :)

Awesome, I'm glad to hear it! Good luck this semester :)

You're very welcome! Good luck in your studies!

So sometimes they will make a new hybrid plant! Plants can "swap" egg/sperm between species with smaller problems than when it happens in the animal world. But sometimes the egg and sperm meet and nothing happens. Usually, the pollen tube won't even form in the first place because it doesn't "detect" what it's looking for (the egg of the same species).

@ProfessorNewtoff thank you prof

You're very welcome! Good luck with your fungal adventures!

Thank you for all your comments and positive vibes! I'm glad my channel has been helpful for you and you've learned some cool things along the way. I know I can do more to tell the story of evolution between the different groups, but I'm glad that the story I do tell is helping you get the information better than just learning a bunch of facts. I hope your invert exam went well!

You are so very welcome! I'm glad my videos have helped understand your lectures better. Wishing you all the As!

You're so welcome! Keep on learning!

So "conifer" really refers to anything that is cone bearing, so pine trees are included as a "conifer". In /everyday life/ usually when someone says 'conifer' they are thinking of fir trees (like a Christmas tree, if you are familiar with those). Fir is also a type of conifer but they are not synonymous.

Scroll down and click on "More" in the description. Then at the bottom of the expanded box, it links all the videos linked in my video. Definitely take a peak, it's pretty cool!

You're very welcome, good luck!

Yes! There's lots of other organisms in here, but I only have videos for the oligochaetes and polychaetes. I hope to make more of the other organisms one day!

Man, imagine 100,000 years ago! Out current cephalopods have nothing on today's ones!

They are! This is why it is so important to give dogs heartworm medication because heartworm is spread through mosquitos. If you live in a temperate climate that is being affected my climate change, you really have to do heartworm year round, not just during the summer.

@@ProfessorNewtoff That is truly gruesome!!

Hopefully one day! I don't teach about them in my class and my UA-cam was really only originally designed for my class but it's been so helpful for so many folks, I hope to make more!

I really appreciate it, thank you!

Well, did you? 😂