Spitbug nest
The froghoppers, or the superfamily Cercopoide, are best known for the nymph stage, which produces a cover of frothed-up plant sap resembling spit; the nymphs are therefore commonly known as spittlebugs and their froth as cuckoo spit, frog spit or snake spit.

The froth serves a number of purposes. It hides the nymph from the view of predators and parasites, it insulates against heat and cold, thus providing thermal control and also moisture control. Without the froth the insect would quickly dry up.

Portuguese man of war
Despite its outward appearance, the Portuguese man o’ war is not a common jellyfish but a siphonophore, which is not actually a single multicellular organism, but a colony of specialized minute individuals called zooids. These zooids are attached to one another and physiologically integrated to the extent that they are incapable of independent survival.

The Borderline does not accept her own intelligence, attractiveness, or sensitivity as constant traits, but rather as comparative qualities to be continually re-earned and judged against others. For the Borderline, identity is graded on a curve. Who she is and what she does today determines her worth, with little regard to what has come before. The Borderline allows herself no laurels on which to rest. Like Sisyphus, she is doomed to roll the boulder repeatedly up the hill, needing to prove herself over and over again.

Jerold Kreisman and Hal Straus ‘I Hate You—Don’t Leave Me: Understanding the Borderline Personality’