But what does Valmiki Ramayana say about Hanuman? Is he a vanara or a human being?
Valmiki Ramayana says that he is a Monkey - The most powerful divine monkey. Following are 3 verses which address Hanuman as kapi and vAnara - meaning a monkey.
Here in Ramayana, Baalkaand, Sarga 1, Verse 77. Narada gives a summary of the Ramayana to Valmiki and addresses ...
Are both Śukla and Kṛṣṇa Yajurveda saṃhitas derived from the same parent source or are they totally independent from each other?
They are totally independent of each other, but like all Vedas, there are some mantras common between both.
The Taittiriya Shakkha of the Krishna Yajur Veda was disseminated by Yajnavalkya:
Texts 64-65: Yājñavalkya, the ...