Yarará Lancehead
Bothrops jararaca
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyViperidae (Vipèrids)
- GenusBothrops (Neotropical Lanceheads)
- SpeciesBothrops jararaca (Yarará Lancehead)
Bothrops jararaca—known as the jararaca or yarara—is a highly venomous pit viper species endemic to South America in southern Brazil, Paraguay, and northern Argentina. The specific name, jararaca, is derived from Old Tupi îararaka. Within its geographic range, it is often abundant and is an important cause of snakebite. No subspecies are currently recognized. The drugs known as angiotensin converting enzyme (ACE) inhibitors, used for the treatment of hypertension and some types of congestive heart failure, were developed from a peptide found in the venom of this species. Wikipedia →
📅 Monthly Probability
Fewer than 5 records of Yarará Lancehead at Iguaçu National Park — not enough to chart months honestly.
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 2 | Itatiaia National Park | 🇧🇷 Brazil | |
| 3 | Tijuca National Park | 🇧🇷 Brazil | |
| 4 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 5 | Iguaçu National Park | 🇧🇷 Brazil | |
| 6 | Iguazú National Park | 🇦🇷 Argentina |