Hybrid Species in Star Trek

I always found it strange in Star Trek most of the alien species encountered can all produce offspring with each other, despite in some instances, even having completely different biology. I mean Vulcans have copper blood, how does that work? Music from bensound.com, purple-planet.com and freesfx.co.uk Star Trek Online developed by Cryptic Studios and Perfect World. Star Trek, Star Trek Enterprise/Voyager/Deep Space Nine/Discovery/Lower Decks/Picard and The Next Generation are all owned and distributed by CBS. Star Trek Films are owned and distributed by Paramount Pictures This Video is for critical purposes with commentary.