The Lost Tribes of Israel - Proof that Evolution (or devolution) exists

Sahih Muslim

Book 042, Number 7135:
Abu Huraira reported that Allah's Messenger (may peace be upon him) said: A group of Bani Isra'il was lost. I do not know what happened to it, but I think (that it 'underwent a process of metamorphosis) and assumed the shape of rats. Don't you see when the milk of the camel is placed before them, these do not drink and when the milk of goat is placed before them, these do drink. Abu Huraira said: I narrated this very hadith to Ka'b and he said: Did you hear this from Allah's Messenger (may peace be upon him)? I (Abu Huraira) said: Yes. He said this again and again, and I said: Have I read Torah? This hadith has been transmitted on the authority of Ishaq with a slight variation of wording.

Book 042, Number 7136:
Abu Huraira reported that the rat (is the result of) metamorphosis (of a group of Bani Isra'il) and the proof of this is that when the milk of goat is placed before it, it drinks it, and when the milk of the camel is placed before it, it would not taste it at all. Ka'b said: Did you hear it from Allah's Messenger (may peace be upon him)? Thereupon he said: Has Torah been revealed to me?

It is clear from the above ahadeeth that Mohammad (PBUH) truly was a scientist. Afterall, He is the first person to come up with the evolutionary process.

1) Why don't more Muslims claim that Mohammad (PBUH) and Allah discovered the theory of evolution centuries before Charles Darwin?
a) And rave upon the fact that Mohammad (PBUH) did not have to go on the beagle?
b) It was not only Mohammad (PBUH) that talked about evolution, but Noah, who prayed that Africans colour would become black "so that their descendants would be slaves to the Arabs and Turks." Tabari II:11

http://muslimhadith.blogspot.com/2008/08/satan-looks-like-nabtal-sturdy-black.html

2) Why do Jewish groups keep looking for the lost tribes of Israel?
a) Can't they just follow Allah's Apostle's testimony and start testing who their lost tribes are by putting camel milk and goat milk in front of rats?

3) Was Mohammad (PBUH) the first person to say that Jews are rats?
a) Is that why many Jews live in New York, which is also filled with rats?
b) Does this mean that the Jews implicitly accept Prophet Mohammad (PBUH) as the messenger of Allah because he is right?