References
Journal article
Octreotide acetate enables the administration of chemoradiotherapy, including the oral anticancer drug S-1, in gastric cancer patients with malignant gastrointestinal obstructionOncology LettersJune 4, 2010
“The efficient sunscreen activity of NH and HP stems from their broad absorption in the UVA and UVB regions of the spectrum.” (Galasso and Pichierri 2009:2543)
Journal article
Probing the Molecular and Electronic Structure of Norhipposudoric and Hipposudoric Acids from the Red Sweat of Hippopotamus amphibius : A DFT InvestigationJ. Phys. Chem. AFebruary 24, 2009
“Although the fluid secreted by the hippopotamus (Hippopotamus amphibius) is not strictly sweat as it is produced by the subdermal glands, it acts like sweat in helping to control body temperature. It is also thought to be antiseptic…What is the function of these pigments as far as the hippopotamus is concerned? Their spectra in the ultraviolet/visible range (200–600 nm; see supplementary information) indicate that they may act as sunscreens. The red pigment 2 also has antibiotic activity: at concentrations lower than that found on the hippopotamus’s skin, it inhibits the growth of the pathogenic bacteria Pseudomonas aeruginosa A3 and Klebsiella pneumonia.” (Saikawa et al. 2004:363)
Thanks to Arno Vlooswijk for contributing the thermographic image of the hippo. The dark spots are droplets like sweat that have sunscreen and antibacterial properties.