Vivarium

The opening sequence displays the activities of an avian (bird) brood parasite, which are organisms that rely on others to raise their young. The brood parasite manipulates a host, either of the same or of another species, to raise its young as if it were its own, using brood mimicry, for example by having eggs (or pudgy, weird babies) that resemble the host's. This behavior relieves the parasitic parents from the investment of rearing young. Some bird species mitigate the risk of egg loss by distributing eggs among a number of different hosts.

When Gemma and Tom are leaving in their silver VW, the car is shown with alloy wheels. During a close-up a moment later, the alloys have switched to plastic hubcaps, and then back to alloys.

Featured in Half in the Bag: Quarantine Catch-up (part 2 of 2) (2020)