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Related Concept Videos

Predator-Prey Interactions02:39

Predator-Prey Interactions

Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.Although predation is commonly associated with carnivory, for...
Epiphytes, Parasites, and Carnivores02:40

Epiphytes, Parasites, and Carnivores

Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the biosynthesis of the...
Physical Properties of Amines01:26

Physical Properties of Amines

Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
Types of Toxins01:36

Types of Toxins

Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Enhanced Elimination of Poison01:26

Enhanced Elimination of Poison

Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
Rabies01:28

Rabies

Rabies is a lethal zoonotic disease caused by a single-stranded, negative-sense RNA virus of the Lyssavirus genus, within the family Rhabdoviridae. Its primary mode of transmission to humans is through bites or saliva-contaminated scratches from infected mammals such as dogs, bats, raccoons, or foxes. Transmission can also occur if infectious saliva contacts abraded skin or intact mucous membranes, including the conjunctiva.Viral Entry and Early ReplicationOnce introduced at the bite or scratch...

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Related Experiment Video

Updated: Jun 24, 2026

Harvesting Venom Toxins from Assassin Bugs and Other Heteropteran Insects
09:45

Harvesting Venom Toxins from Assassin Bugs and Other Heteropteran Insects

Published on: April 21, 2018

New Zealand's venomous creatures.

Robin J Slaughter1, D Michael G Beasley, Bruce S Lambie

  • 1New Zealand National Poisons Centre, University of Otago, Dunedin, New Zealand. robin@poisons.co.nz

The New Zealand Medical Journal
|March 26, 2009
PubMed
Summary

New Zealand has few venomous creatures, but envenoming can cause significant illness. This review educates healthcare professionals on managing these venomous creature encounters effectively.

Area of Science:

  • Toxicology
  • Clinical Medicine
  • New Zealand Wildlife

Background:

  • New Zealand possesses a limited number of venomous species.
  • Envenoming incidents, though infrequent, necessitate informed medical management.

Purpose of the Study:

  • To provide healthcare professionals with updated knowledge on managing venomous creature envenoming in New Zealand.
  • To outline definitive treatment recommendations for envenoming cases.

Main Methods:

  • Systematic literature review using OVID MEDLINE and ISI Web of Science.
  • Inclusion of information from book chapters, news reports, and web resources.

Main Results:

  • Discussion of signs and symptoms associated with clinically significant venomous creature envenoming in New Zealand.

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Extraction of Venom and Venom Gland Microdissections from Spiders for Proteomic and Transcriptomic Analyses
10:25

Extraction of Venom and Venom Gland Microdissections from Spiders for Proteomic and Transcriptomic Analyses

Published on: November 3, 2014

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Last Updated: Jun 24, 2026

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10:25

Extraction of Venom and Venom Gland Microdissections from Spiders for Proteomic and Transcriptomic Analyses

Published on: November 3, 2014

  • Presentation of definitive medical treatment guidelines.
  • Conclusions:

    • Envenoming by New Zealand's venomous creatures can lead to substantial morbidity, despite being rarely fatal.
    • Effective patient management relies on informed healthcare professionals adhering to established principles.