Messiah is supposed to bring about an era of peace. Although Jewish tradition acknowledges the afterlife, it is not a basic tenet of Jewish faith. In Jesus' day, the Pharisees, who were in large part the forerunners of rabbinic Judaism, definitely did believe in physical resurrection of the body. Food is considered kosher or not kosher based on the guidelines laid out in the Torah. That means sheep, goats and cattle are among the kosher meats, but pigs, horses and camels are not.
Fish are okay as long as they have both fins and scales.
No other kind of seafood is allowed. Most kinds of fowl commonly eaten in western cultures are kosher, including chicken, turkey, pheasant, duck, goose and quail. The biblical list of forbidden birds is essentially a list of scavengers and birds of prey. Eagles, hawks, vultures and the like are out. Creatures which do not fit neatly into one of these categories are generally unkosher.