Elongated Skulls Could be Proof of Alien Life Here!

Columbia University released a study a several years back about the flaws in using the carbon 14 isotopes to determine age. One issue was contamination and another was that geographic regions can some sometimes alter the decay rate of the carbon 14 isotope. So do we believe science when they even admit there is flaws in the system they're using?
From the Sun to the Plants. Then the animals eat the plants. When an animal dies then the decay will
start. Half life reading is 5730 years. When they say anything tested with Carbon dating with millions
or even hundreds of thousand of years then we should know they are telling untruths.