So on the top is an image of one of the types of molecules that the animals are using to make their glue, and what they are is they're very long molecules, they're called proteins, and these proteins happen to have some fairly unique parts in them that bring about the adhesive properties.
En la parte superior hay una imagen de uno de los tipos de moléculas que usan los animales para hacer pegamento. Son moléculas muy largas  llamadas proteínas, y estas proteínas tienen partes únicas que producen las propiedades adhesivas.