STORY: From Amazon's FedEx challenge to robotic bag handlers at airports... this is Tech Weekly.:: Tech WeeklyAmazon.com has moved into the business of UPS and FedEx with its so-called "Amazon Supply Chain Services".The firm has given other businesses access to its supply chain network that has powered the e-commerce giant’s operation for decades.The move could make it a key logistics player and intensify competition on pricing and speed.It has already signed up Procter & Gamble, 3M and American Eagle Outfitters. ///A Chinese robotics startup is seeking a $6 billion valuation in its next financing round.Linkerbot is the global market leader in highly dexterous robotics hands for humanoids.The firm said it focuses on the skills of top artisans, which its CEO calls 'dexterous craft'. The hands can already turn screws fast, pick up soft items, thread a needle, and do precise factory work.///Japanese baggage handlers are due to be joined by robotic colleagues at Tokyo's Haneda Airport.It's part of a two-year trial of the technology by Japan Airlines.The humanoid robots aim to contribute to tasks like baggage handling and cleaning aircraft cabins.Japan Airlines said in a statement about the initiative the aero sector faces the duel challenges of an aging and shrinking workforce, and a higher workload./// Scientists from Project CETI have built an underwater robot to listen in to sperm whale conversations.The creatures click to communicate in bursts of sound that can travel huge distances.David Gruber is project CEO and explained how the robot worked."So it essentially is like a fully autonomous vehicle, kind of like a Waymo car, that's making decisions and being able to stay, even though it moves quite slowly, stay with whales for long periods of time. It allows us to get these longer term data sets." The system could potentially show how the whales react to human-made noise and activity and how it affects them.///And a humanoid robot called Sophia performed with a live orchestra in AI-themed concert in Hong Kong"Even though I don't experience emotions the same way humans do, I want to simulate that connection as authentically as I can."Sophia was first unveiled by the Hong Kong-based Hanson Robotics ten years ago and she's even sung on "The Tonight Show Starring Jimmy Fallon".But this was the first time Sophia had appeared with a live orchestra.She performed three songs overall.