More on the Selfish Gene and Evolution

Some additional information regarding why things evolve and "the selfish gene".
This Side Notes covers:
- Birds with Horns
- Survival vs reproduction, K and r selection
- A single gene for a trait?
- More on the selfish gene and crossing over
- DNA doesn't code for proteins. RNA world hypothesis?

Link Dump

Image Credits
Cassowary

Hornbill

Camouflage owl- Potoo

Camoflage bug

Bacteria

Baby

[aynsleyhoelscher]

"It will murder you and feel no emotion"

[RowanHumphreys]

I could probably listen to these videos for days on end without getting bored, you would be a phenomenal teacher.

[jdonnorland]

im about to binge watch all your videos

[TheDavidLiou]

2 Reproductive strategies: the spammer and the sharpshooter :P

[shahdalmnaies]

I have to say that even after watching only two videos i decided that this is my next best youtube channel, I love what ur doing! Ur simplifying it so much & presenting it in such a great & easy to understand way. Keep up the great work! Waiting for ur new videos, good luck.

[kaylee]

I just learned more here with this video, than I have in 18 years of school. thanks American schools.

[XxvoleistulxX]

i think its only gonna take so long untill people find this channel. no matter what stick to it.

[zwep]

Your videos are really fun to watch! (both fun as in.. I was laughing, and fun as in.. science stuff.. which I like!)

[DatIIV]

I just began binge watching you videos, and seriously I'm surprised your not more popular, your videos are incite full, and detailed and help to understand fairly complicated topics, Keep it up :)

[NoriMori]

Seriously, don't mess with cassowaries. I read about a boy who messed with one, and died when it slashed him in the neck and sliced open his carotid artery. Don't mess with ostriches or kangaroos either, for similar reasons. Their legs are more powerful than you can possibly imagine. _"It'll murder you and feel no emotion."_

[thetruepipster]

Cassowaries are Australian. Another thing trying to kill me...

[symbioticcoherence]

hey, did the "cat" in 3:05 really have 5 feet? a bit strange, but lovely :D

[gabriellehull]

+this place
please do a video on how plants are female and male and all that. School tried to explain it but it just ended up confusing me a bit.
:)

[Illya]

Just found your channel, I love your vids, you should have way more views!

[catief]

About the single ethnicity child from mixed ethnicity parents, there are a few examples of twins where one twin looked white and one looked black and there's some mixing in their parents' ancestry (one I usually fine is half and half).

[ElemenTzEdits]

dude your videos are so fucking good, never stop making them

[RosalegaFrumlegt]

This video series was highly informative, thank you.

[MananagKiVato]

Only now I realize that these types of videos have blue side-bars on their thumbnails while his main videos have dark grey side-bars.

[alttrottgamer]

i just started watching ur videos, and i love the funny comments you make here and there. xD

[teunvandenbrand]

A few points from a biology student. 5:58: A microbiologist studies microbes, a molecular biologist studies the large molecules such as DNA, RNA and proteins. 4:06: A non-trivial thing is that most within-species genetic variation does not occur in protein-coding genes, but in gene regulatory elements that determine a combination of under what circumstances a protein coding gene is expressed and how much is expressed. An example of this could be lactase persistence, which is the ability of mostly Caucasian people to digest lactose in adulthood. Lactase, the enzyme that digests lactose, used to be expressed in weening babies and becomes inactivated in adulthood. The mutations that keeps lactase expressed during adulthood are not in the protein coding sequence of lactase, but rather in a region somewhat upstream of the lactase gene. This region, called an enhancer, acts as a platform for transcription factors that can initiate the transcription of mRNA from the lactase gene. It is believed that the 3 dimensional structure of DNA in the form of loops bring the enhancer near the start site of the gene and recruit RNA polymerases to initiate the transcription of the gene. Thus, zooming back out, non protein coding sequences are driving most of the within-species genetic variation and thus evolution.