Why are cockle burs important?

When did Gull Rocks Light end? What animals use defensive behaviors? What has feathers no legs? Why are frogs often used in laboratory studies? What is the difference between develop and evolve? Which describes the effect of delaying the discovery that the creatures are dragons? Why do animal become extinct? Who was the clever Hans phenomenon? Is the staff friendly? What are the key stakeholders of the convention of international trade of endangered species (CITES)? What animal represents forgiveness? What is the structure in a sea urchin known as Aristotle's Lantern? What is the most simplest and most complex highly organized systems in a animal and plants? What is the difference between an abolitionist and a minimalist? What do varmints eat? What animal was paraded through the streets of Paris on Mardi gras to remind people not to eat meat during lent? What are zhu zhu pets? What sounds do fire make? What wars did King James in? What sea turtles live only off the coest of astraliua?

Why are cockle burs important?