What does Daltry think caring about one snake is symbolic of?

Jenny Daltry thinks that caring about one snake is symbolic of how the safety of one species will lead to the overall safety of the others slowly. And in that process, it is ensuring that some endangered species do not go extinct.

Explanation:

Jenny Daltry is a conservation biologist whose work mostly centers around the 'unwanted' animals of the animal kingdom such as snakes and reptiles. She focuses on taking care of, helping in spreading awareness, and helping conserve snakes, crocodiles, and another lesser- wanted animals.

When asked why she works for such animals in particular the Antiguan racers, she replied, "To me, it’s symbolic. If you don’t care about this particular snake, why should you care about anything else? Each one is part of a great web." To her, taking care of one snake is symbolic of how one single living being is a part of a bigger cycle of the living world. So, if one was to take care of even a single snake, then it is a small step to ensuring that the others are also safe and the whole web is made safe and taken care of.

it might be feelings and action sorry if i am wrong

the narrator is saying that the old lady made her feel uncomfortable. you know this because they say "i found that rather irksome", "perhaps it was her being so upright and trim", and "i don't think it was that, because i thought that quaintly pleasant." hope this !