Well, sentience is a really complicated thing . . . and it differs from the species that have it. Elephants have the greatest memory out of any species on the planet and sometimes suffer from post-traumatic stress syndrome. Dolphins have a complex language and sexual desire (they mate for fun). What's really freaky and interesting is the Portia spider, which is the only insect/arachnid to show a level of intelligence (possibly sentience?) . . . it's a spider that feeds primarily on other spiders, but does so by climbing on the web of its prey, whereby it mimics a familiar tune. Spider webs work like this: their design is built on a frequency of vibrations the maker/spider recognizes . . . so when wind moves the web, the spider knows it's wind, and when an insect struggles on the web the vibration it causes tells the spider it's food. So, there's the portia, on some other spider's web, playing the notes for wind . . . until it's ready to strike, then it plays the notes of a struggling insect. When the other spider comes to investigate, the portia attacks. Now, it's a relatively small spider, so it is venomous. But how is it the portia knows to play these notes? Every spider's web is designed according to it's class. But what's more interesting is what the portia does when the other spider doesn't fall for it's trick. The portia will sit there, look about (literally, it looks around) and then it will climb up a tree, out onto a branch, then dangle down and swing in for the attack, biting the other spider on its back. Now how many species out there have the ability to plan out strategic attacks like this . . . furthermore, how many insects? Not very many . . . so the portia spider, sentient?

What I wonder is, is whether or not feral children are sentient . . . I'm talking about true feral children, those that live in the wild, away from man. If portions of their brain deteriorate, does it cause a negative affect on their a pirori logic?