Post navigation A team of scientists has developed a technology to make two-dimensional optical waveguides which are up to 10 times smaller than previously possible. The waveguide technology can be used to make very small devices such as displays, data transmission systems, and optical processors. This innovation has the potential to revolutionize how we use and process information in the future. White sharks have an unexpected friend – the pilot fish. The pilot fish can act as a guardian of the white shark, eating parasites from its skin and even chasing away predators. This peaceful relationship between white sharks and pilot fish supports the idea that some shark species can be very social.