Graduate Research Course
Polar Penguin Biophysics
From the emperor’s 4-month fast to the individual voice in a 10 000-bird colony — Sphenisciformes at −60 °C, in turbulent huddles, and underwater to 565 m.
About This Course
Penguins are flightless seabirds that converged on a marine-predator niche once occupied by reptiles. An emperor penguin (Aptenodytes forsteri) endures −60 °C winds with an 85 % operative radiant efficiency coat, fasts for 120 dayswhile incubating an egg on its feet, and dives to 565 m after fish — deeper than nuclear-submarine crush depth. This course treats penguin biophysics, bioacoustics, diving physiology, feather microengineering, and colony-level self-organization.
Cross-links: Climate & Biodiversity M9,Polar Bears,Polar Seals,Avian Biophysics.
Nine Modules
M0
Sphenisciformes Evolution
Order Sphenisciformes 60 Mya origin, ancestral flight loss, giant fossil penguins (Kumimanu, Palaeeudyptes), Ksepka 2012 phylogenetics.
M1
Emperor I: Huddle Thermoregulation
Turbulent huddle dynamics (Gilbert 2010 traveling waves), individual energy savings 50%, -60 C endurance, insulation feather microstructure.
M2
Emperor II: Breeding & Fasting
4-month male fast (20 kg to 12 kg), egg incubation on feet, brood pouch thermodynamics, cooperative pair-switching, colony-level synchrony.
M3
Hydrodynamics & Flipper
Drag reduction via air-lubrication bubble coat, Clark 2011 PIV flow visualization, 30 km/h burst, flipper as high-aspect-ratio wing.
M4
Diving Physiology
Adelie-Gentoo-Chinstrap diving repertoires, O2 stores (myoglobin 4 g/100g muscle), bradycardia to 20 bpm, Kooyman 1989, emperor to 565 m.
M5
Feather & Waterproofing
Preen-gland uropygial oil, feather barbule packing (Dawson 1999), molting fast, Stokes drag reduction by feather nanostructure.
M6
Vocal & Individual Recognition
Two-voice syrinx producing interleaved frequencies, Aubin 2000 chick recognition in 10,000-adult colony, cocktail-party algorithm decoded.
M7
King, Rockhopper & Others
King penguin 3-year breeding cycle, Rockhopper, Macaroni, Royal, Chinstrap, Adelie, Gentoo comparative physiology and ecology.
M8
Climate Change & Conservation
Jenouvrier 2014 emperor projections, krill decline, 2023-24 H5N1 bird flu Antarctic incursion, cross-links climate-biodiversity M9.