macaroni-and-knees asked: How can you tell the difference between female and male rose hair tarantulas?
With tarantulas in general once they meet sexual maturity its very easy to tell the sexes apart, females are larger, lady spiders being heftier in general. All spiders have pedipalps but males have mating claspers at the end, male pedipalps have a very rounded end and they carry them differently, females wills sort of mime walk with them while males keep them more curled up, they also are usually smaller, more slender and have longer legs. Before they reach maturity however it’s nearly impossible to tell them apart, you can look for what is called a vent on the abdomen it’s between the book lung openings, chances are if a spiderling has that they are female as thats the genital opening. these things to look for work for pretty much every tarantula and true spider species, hope that helps!