Lesson plan
Katipō
Katipō (pronounced or ; Latrodectus katipo) is a species of cobweb spider found only in New Zealand. It is one of many species in the genus Latrodectus and is most closely related to the Australian redback (L. hasseltii). It is venomous to humans, its bite being capable of producing the toxic syndrome latrodectism; symptoms include extreme pain and, potentially, hypertension or seizure. Bites are rare and antivenom is available in some hospitals. The female is in length; the male is . In the South Island and the lower half of the North Island, the female has a distinct red stripe bordered in white on its abdomen; in more northern populations this stripe is absent, pale, yellow, or replaced with cream-coloured blotches. These two forms were previously thought to be separate species. The male is white with black stripes and red hourglass-shaped markings. The katipō is mainly found living in sand dunes close to the seashore. It is found throughout most of coastal New Zealand except the far south and the West Coast. It feeds mainly on ground-dwelling insects, caught in an irregular tangled web spun among dune plants or other debris. After mating, the female katipō produces five or six egg sacs in November or December. The juveniles hatch after 20–25 days, and during January and February they disperse into surrounding plants.…
Article summary
Katipō (pronounced or ; Latrodectus katipo) is a species of cobweb spider found only in New Zealand. It is one of many species in the genus Latrodectus and is most closely related to the Australian redback (L. hasseltii). It is venomous to humans, its bite being capable of producing the toxic syndrome latrodectism; symptoms include extreme pain and, potentially, hypertension or seizure. Bites are rare and antivenom is available in some hospitals. The female is in length; the male is . In the South Island and the lower half of the North Island, the female has a distinct red stripe bordered in white on its abdomen; in more northern populations this stripe is absent, pale, yellow, or replaced with cream-coloured blotches. These two forms were previously thought to be separate species. The male is white with black stripes and red hourglass-shaped markings. The katipō is mainly found living in sand dunes close to the seashore. It is found throughout most of coastal New Zealand except the far south and the West Coast. It feeds mainly on ground-dwelling insects, caught in an irregular tangled web spun among dune plants or other debris. After mating, the female katipō produces five or six egg sacs in November or December. The juveniles hatch after 20–25 days, and during January and February they disperse into surrounding plants.…
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
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- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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