I watched a very interesting documentary about plants yesterday evening . It was called unusual plants and looked at several species of plants from around the world which have unusual features .   Really ? Tell me about some of the plants they showed .   Well . There was one type of plant that catches insects and eats them .   Is that type of plant found in this country ?   No , it isn ’ t . it ’ s a pity , because I ’ d like to see it in action .   So would i . what other unusual plants did they show ?   They showed flowers that only provide their nectar to one type of butterfly or bee . The insect has to be the exact size to get the nectar . Other insects cannot get it . Of course , when the insect molle   That ’ s very specialized . So , the insects and the flowers rely on each other . If one became extinct , the other would too .   That ’ s right . That ’ s one reason why it ’ s so important to protect every species .   I see . The plants that fascinate me most are cacti . I find it amazing that they can survive in such dry desert conditions .   According to the documentary , they have an incredible ability to find water supplies , however small , and then store them without losing much through evaporation . 