keyword

are humans nocturnal or diurnal

Monthly search volume and cost-per-click data for "are humans nocturnal or diurnal" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=are+humans+nocturnal+or+diurnal&country=us" +--------------+------------------+ | volume | 40 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-22 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
circadian rhythm	110,000	$0.52	6/20
can human be nocturnal	720	$0	10/20
can humans be nocturnal	720	$0	9/20
are humans nocturnal	320	$0	12/20
are humans diurnal	320	$0	11/20
humans are diurnal	320	$0	10/20
nocturnal human	320	$0	7/20
can a human be nocturnal	110	$0	8/20
are some humans nocturnal	70	$0	7/20
why are humans diurnal	30	$0	10/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=are+humans+nocturnal+or+diurnal&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt